WMF Human Cognitive Abilities Archive Project: Major update 12-29-11

Here is an early New Years present to those interested in the structure of human cognitive abilities and the seminal work of Dr. John Carroll.

The free on-line WMF Human Cognitive Abilities (HCA) archive project had a MAJOR update today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.

Today's update added the following 38 new data sets from John "Jack" Carroll's original collection.  We now have approximately 50% of Jack Carroll's original datasets archived on-line.  Of particular interest is the addtion of one of Carroll's data sets, three by John Horn, and 17 by Guilford et al.  Big names...and some correlation matrices with big numbers of variables.  Data parasites (er....secondary data analysits) should be happy.

• CARR01.  Carroll, J.B. (1941).  A factor analysis of verbal abilities.  Psychometrika, 6, 279-307.
• FAIR02.  Fairbank, B.A. Jr., Tirre, W., Anderson, N.S. (1991).  Measures of thirty cognitive tasks:  Intercorrelations and correlations with aptitude battery scores. In P.L. Dann, S. M. Irvine, & J. Collis (Eds.), Advances in computer-based human assessment (pp. 51-101).  Dordrecht & Boston: Kluwer Academic.
• FLAN01.  Flanagan, J.C., Davis, F.B., Dailey, J.T., Shaycoft, M.F., Orr, D.B., Goldberg, I., Neyman, C.A. Jr., (1964).  The Amercian high school student (Cooperative Research Project No. 635).  Pittsburgh:  University of Pittsburgh.
• FULG21.  Fulgosi, A., Guilford, J. P. (1966).  Fluctuation of ambiguous figures and intellectual flexibility.  American Journal of Psychology, 79, 602-607.
• GUIL11.  Guilford, J.P., Berger R.M., Christensen, P.R. (1955).  A factor-analytic stydy of planning:  II. Administration of tests and analysis of results.  Los Angeles:  Reports from the Psychological Laboratory, University of Southern California, No. 12.
• GUIL31 to GUIL46 (17).  Guilford, J.P., Lacey, J.I. (Eds.) (1947).  Printed classification tests.  Army Air Force Aviation Psychology Program Research Reports, No. 5.  Washington, DC: U.S. Government Printing Office. [discussed or re-analyzed by Lohman (1979)]
• HARG12.  Hargreaves, H.L. (1927).  The 'faculty' of imagination:  An enquiry concerning the existence of a general 'faculty,' or group factor, of imagination.  British Journal of Psychology Monograph Supplement, 3, No. 10.
• HECK01.  Heckman, R.W. (1967).  Aptitude-treatment interactions in learning from printed-instruction: A correlational study.  Unpublished Ph.D. thesis, Purdue University.  (University Microfilm 67-10202)
• HEND01.  Hendricks, M., Guilford, J. P., Hoepfner, R. (1969). Measuring creative social abilities. Los Angeles: Reports from the Psychological Laboratory, University of Southern California, No. 42.
• HEND11A.  Hendrickson, D.E. (1981). The biological basis of intelligence. Part II: Measurement. In H.J. Eysenck (Ed.), A model for intelligence (pp. 197-228). Berlin: Springer.
• HHIG01.  iggins, L. C. (1978) A factor analytic study of children's picture interpretation behavior. Educational Communication & Technology, 26, 215-232
• HISK03/04.  Hiskey, M. (1966). Manual for the Hiskey-Nebraska Test of Learning Aptitude. Lincoln, NE: Union College Press.
• HORN25/26.  Horn, J. L., & Bramble, W. J. (1967). Second-order ability structure revealed in rights and wrongs scores. Journal of Educational Psychology, 58, 115-122.
• HORN31.  Horn, J. L., & Stankov, L. (1982) Auditory and visual factors of intelligence. Intelligence, 6, 165-185.
• KEIT21.  Keith, T. Z., & Novok, C. G. (1987). What is the g that the K-ABC measures? Paper presented at the meeting of the National Association of School Psychologists, New Orleans, L.A.
• KRAN01/KRAN01A.  Kranzler, J. H. (1990). The nature of intelligence: A unitary process or a number of independent processes? Unpublished doctoral dissertation, University of California at Berkeley.
• LANS31.  Lansman, M., Donaldson, G., Hunt, E., & Yantis, S. (1982). Ability factors and cognitive processes. Intelligence, 6, 347-386.
• LORD01.  Lord, F. M. (1956). A study of speed factors in tests and academic grades. Psychometrika, 21, 31-50.
• LUN21.  Lunneborg, C. E. (1977). Choice reaction time: What role in ability measurement? Applied Psychological Measurement, 1, 309-330.
• WOTH01.  Wothke, W., Bock, R.D., Curran, L.T., Fairbank, B.A., Augustin, J.W., Gillet, A.H., Guerrero, C., Jr. (1991).  Factor analytic examination of the Armed Services Vocational Aptitude Battery (ASVAB) and the kit of factor-referenced tests.  Brooks Air Force Base, TX: Air Force Human Resources Laboratory Report AFHRL-TR-90-67.

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. We have yet to locate copies of the original manuscripts for a significant number of datasets that have been posted to the archive. Help in locating copies of these MIA manuscripts would be appreciated.  Please visit the special "Requests for Assistance" section of this archive to view a more complete list of manuscripts that we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.  A copy of the complete list or datasets with missing mannuscripts (in red font) can also be downloaded directlly from here.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities Archive Project: Major update 7-13-11

The free on-line WMF Human Cognitive Abilities (HCA) archive project had a MAJOR update today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.


Today's update added the following 29 new data sets from John "Jack" Carroll's original collection.  We now have approximately 40% of Jack Carroll's original datasets archived on-line.

• PIMS01/PIMS02  Pimsleur, P., Stockwell, R. P., 7 Comrey, A. L. (1962). Foreign language learning ability. Journal of Educational Psychology, 53, 15-26.
• PEDU01   Pedulla, J. J., Airasian, P. W., & Madaus, G. F. (1980). Do teacher ratings and standardized test result of students yield the same information? American Educational Research Journal, 17, 303-307.
• PEMB01  Pemberton, C. (1952). The closure factors related to other cognitive processes. Psychometrika, 17, 267-288.
• PENF01  Penfold, D. M., & Abou-Hatab, F. A. H. (1967). The factorial dimensions of verbal critical thinking. Journal of Experimental Education. 36(2), 1-12.
• PETR01  Petrove, Y. I. (1970). [Memory structure as a psychic function] (Russian). Voprosy Psikhologii, 16(3), 132-136.
• PETE01  Petersen, H., Guilford, J. P., Hoepfner, R., & Merrifield, P. R. (1963). Determination of "Structure-of-Intellect" abilities involved in ninth-grade algebra and general mathematics. Los Angeles: reports from the Psychological Laboratory, University of Southern California, No. 31.
• PARA01/PARA04  Paraskevopoulos, J. N., & Kirk, S. A. (1969) The development and psychometric characteristics of the revised Illinois Test of Psycholinguistic Abilities. Urbana, IL: University of Illinois Press.
• OLSO51  Olson, J. R. (1966). A factor analytic study of the relation between the speed of visual perception and the language abilities of deaf adolescents. Unpublished doctoral dissertation, Ohio State University. (University Microfilms 67-2507)
• PATE01  Paterson, D. G., Elliott, R. M., Anderson, L. D., Toops, H. A., & Heidbreder, E. (1930). Minnesota Mechanical Ability Tests. Minneapolis, MN: University of Minnesota Press.
• MOUR01  Moursy, E. M. (1952). The hierarchical organization of cognitive levels. British Journal of Statistical Psychology, 5, 151-180.
• MOON01  Mooney, C. M. (1954). A factorial study of closure. Canadian Journal of Psychology, 8, 51-60.
• MULL01  Mulla, M. A. (1979). Aptitude, attitude, motivation, anxiety, intolerance of ambiguity, and other biographical variables as predictors of achievement in English as a Foreign Language by high school science majors in Saudi Arabia. Unpublished Ph. D. Dissertation, University of Michigan.
• MEEK01  Meeker, M., & Meyers, C. E. (1971). Memory factors and school success of average and special groups of ninth-grade boys. Genetic Psychology Monographs, 83, 275-308. 
• MICH51  Michael, W. B., Zimmerman, W. S., & Guilford, J. P. (1950). An investigation of two hypotheses regarding the nature of the spatial-relations and visualization factors. Educational & Psychological Measurement, 10, 187-213.
• MICH61/MICH62  Michael, W. B., Zimmerman, W. S., & Guilford, J. P. (1951). An investigation of the nature of the spatial-relations and visualization factors in two high school samples. Educational & Psychological Measurement, 11, 561-577. 
• MASN01  Many, D. (1983) Cognitive and linguistic correlates of second language grammaticality judgments. Unpublished doctoral dissertation, University of Montreal.

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. We have yet to locate copies of the original manuscripts for a significant number of datasets that have been posted to the archive. Help in locating copies of these MIA manuscripts would be appreciated.  Please visit the special "Requests for Assistance" section of this archive to view a more complete list of manuscripts that we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.  A copy of the complete list or datasets with missing mannuscripts (in red font) can also be downloaded directlly from here.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Finally, it was exciting to learn that an article "in press" in the journal Intelligence utilized one of the WMF HCA archived datasets.  Information regarding that article is contained in the two images below.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities Project Update 4-20-10: 22 new Carroll data sets

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.


Today's update added the following 22 new data sets from John "Jack" Carroll's original collection.

• **GUIL31, GUIL32A, GUIL41:     Guilford, J.P., Lacey, J.I. (Eds.) (1947).  Printed classification tests.  Army Air Force Aviation Psychology Program Research Reports, No. 5.  Washington, DC: U.S. Government Printing Office. [discussed or re-analyzed by Lohman (1979)]

• HEMP21:     Hemphill, J.K., Griffiths, E., Frederiksen, N., Stice, G., Iannaccone, L., Coffield, W., & Carlton, S. (1961). Dimensions of administrative performance. New York and Princeton: Teachers College, Columbia University, & Educational Testing Service.

• PICK01:     Pickens, J. D., Pollio, H. R. (1979). Patterns of figurative language competence in adult speakers. Psychological Research, 40, 299-313. 

• PORT01:     Porter, E. L. H. (1938). Factors in the fluctuation of fifteen ambiguous phenomena. Psychological Record, 2, 231-253. 

• **PRIC01:     Price, E. J. J. (1940). The nature of the practical factor (f). British Journal of Psychology, 30, 341-351. 

• RICH01, RICH02:     Richards, T. W., & Nelson, V. L. (1939). Abilities of infants during the first eighteen months. Journal of Genetic Psychology, 55, 299-318. 

• ** RIEB01, REIB02:     Rieben, l., & Mengal, P. (1977). Intelligence globale, creativite et operativite chez l'enfant: Analyse factorielle et analyse discriminante. [Global intelligence, creativity, and operativity in the child: Factorial and discriminant analysis.] Psychologie - Schweizerische Zeitschrift fur Psychologie und ihre Anwendungen, 36, 100-108. 

• RIMO11:     Rimoldi, H. J. A. (1948). Study of some factors related to intelligence. Psychometrika, 13, 27-46. 

• **ROBE11:     Robertson-Tchabo, e., & Arenberg, D. (1976). Age differences in cognition in healthy educated men: A factor analysis of experimental measures. Experimental Aging Research, 2, 75-89. 

• ROND01, ROND02:     Rondal, J. A. (1978). Patterns of correlations for various language measures in mother-child interactions for normal and Down's syndrome children. Language & Speech, 21, 242-252.  

• **ROSE01:     Rose, A. M. (1974). Human information processing: An assessment and research battery. Ann Arbor: Human Performance Center, Department of Psychology, University of Michigan. (Technical Report No. 46)

• **ROSE11:      Rose, A. M. & Fernandes, K. (1977). An information processing approach to performance assessment: I. Experimental investigation of an information processing performance battery. Washington: American Institutes for Research, Technical Report No. 1. 

• STAN01:     Stankov, L. (1978).  Fluid and crystalized intelligence and broad perceptual factors among 11 to 12 year olds.  Journal of Educational Psychology, 70, 324-334.

• STAN21:     Stankov, L. (1983). Attention and intelligence. Journal of Educational Psychology, 75, 471-490.

• STAN41:     Stankov, L., Horn, J. L., & Roy, T. (1980). On the relationship between Gf/Cg theory and Jensen's Level I/Level II theory. Journal of Educational Psychology, 72, 796-809. 

• STAN51:    Stanovich, K. E. (1981). Relationships between word decoding speed, general name-retrieval ability, and reading progress in first-grade children. Journal of Educational Psychology, 73, 809-815. 

• STAN61:    Stanovich, K. E., Cunningham, A. E., & Freman, D. J. (1984). Intelligence, cognitive skills, and early reading progress. Reading Research Quarterly, 29, 278-303.

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. We have yet to locate copies of the original manuscripts for the data sets listed above that are designated with **. Help in locating copies of these MIA manuscripts would be appreciated.

Also,  please visit the special "Requests for Assistance" section of this archive to view a more complete list of manuscripts that we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) project update: 9-11-09

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.


Today's update added the following 10 new datasets from John "Jack" Carroll's original collection.

• Davis, F.B. (1944). Fundamental factors of comprehension in reading. Psychometrika, 9, 185-197.

• Davis, P.C. (1956). A factor analysis of the Wechsler-Bellevue scale. Educational & Psychological Measurement, 16, 127-146.

• **Day, R. (1980). Unpublished study of the Language-bound effect.

• de Mille, R. (1962). Intellect after lobotomy in schizophrenia: A factor-analytic study. Psychological Monographs, 76 (16, Whole No. 535). [ADI Document 7260]

• Denton, J.C., Taylor, C.W. (1955). A factor analysis of mental abilities and personality traits. Psychometrika, 20, 75-81.

• DuBois, P.H. (1932). A speed factor in mental tests. Archives of Psychology, 22 (Whole No. 141).

• **Dupont, J-B., Gendre, F., Pauli, L. (1975). Epreuves operatoires et tests factoriels classiques; Contribution a l'etude de la structure des aptitudes mentales drant l'adolescence. [Tests of operations and classic factorial tests; Contribution to the study of the structure of mental aptitudes during adolescence.] Revue Europeenne des Sciences Sociales et Cahiers Vilfredo Pareto, 13(No. 35), 137-198.

• Remondino, C. (1962). Recherche sur la signification du facteur numerique. [Research on the signification of the numerical factor.] Revue de psychologie Appliquee, 12, 63-81.

• Reyburn, H. A., Taylor, J. G. (1941). Some factors of intelligence. British Journal of Psychology, 31, 249-261.

• Reynolds, C. R. (1979). A factor analytic study of the Metropolitan Readiness Test. Contemporary Educational Psychology, 4, 315-317.

• Reynolds, C. R. (1980). Differential construct validity of a preschool battery for Blacks, Whites, males, and females. Journal of School Psychology, 18, 112-125.

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. We have yet to locate copies of the original manuscripts for the datasets listed above that are designated with **. Help in locating copies of these MIA manuscripts would be appreciated.

Also, please visit he special "Requests for Assistance" section of this archive to view a list of manuscripts that we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities Project critical update: Carroll's EFA final solutions now being posted

The WMF Human Cognitive Abilities (HCA) project is pleased to announce the addition, to the WMF HCA Archive, the final hierarchical factor matrix solutions (produced by Jack Carroll) for each exploratory factor analysis included in his seminal 1993 Human Cognitive Abilities book.

When Carroll's (1993) book was first published, individuals could purchase (from Cambridge University Press), a set of two 5.25 disks. Many researchers were very excited when they heard this news and many purchased the disks. Much of our initial excitement was dampened when the disks arrived--- as they did not include the original correlation matrix input files. However, they did contain the hierarchical factor matrix final solution Carroll produced for each dataset he had analyzed.

Since Feb 2008 these disks can no longer be purchased from the publisher. Thus, researchers are now unable to examine the final output solutions from Carroll's methods (described in detail in Chapter 3, p. 73 - 114).

Also, if you happened to purchase the disks, the output could only be printed on old dot-matrix type printers (and not all such printers). Each file, when viewed in a text editor, is filled with all kinds of strange printer codes and characteristics that result in the output, when printed on today's printers, being a mess. Fortunately, when the HCA project was first started, I (Kevin McGrew) had someone write a small computer utility that cleaned the files of the strange code--thus making it possible to print the solutions. At that time we printed all the solutions and assembled them in three ring binders. The printed output was not perfectly formatted, but it was readable.

The WMF HCA project is pleased to announce that we have scanned all these printed copies to PDF files. We are adding these PDF files to each dataset when they are posted to the WMF HCA archive. Unfortunately, some of the printed output files have been lost or were not originally printed. And, we can no longer find the software utility used to clean the files for printing on contemporary printers. Thus, we do not have all the Carroll EFA hierarchical matrix output solutions available at this time. We will attempt to have a similar file cleaning/printing utility developed to extract these final output files.

Why is this important?

In cases where we have archived the original correlation matrix, original publication, and Carroll's hierarchical output solution, it is now possible for independent researchers to conduct their own secondary analysis of the original matrix and compare it to Carroll's solution. More importantly, and following the recommendation of Carroll, these "final" EFA solutions can serve as input into contemporary CFA/SEM software to refine the solution. Many researchers were not aware that this was the procedure Jack Carroll was using near the end of his career. He was using his custom written EFA software (as explained in Chapter 3 of his book) to secure an initial factor structure for a dataset which he then used as the starting point for model generation, exploration and evaluation via CFA/SEM methods. An example of this can be seen in the last chapter Carroll published (click here to see a pre-pub version of this chapter)

We hope that the inclusion of the final Carroll hierarchical matrix output files will encourage researchers to revisit Carroll's analyses with an eye towards a fine-tuning of his work--something he encouraged in his 1993 book and subsequent writings. Individuals will need to read Chapter 3 in Carroll (1993) to understand and interpret the EFA hierarchical output files.

Finally, the availability of the EFA hierarchical matrix PDF output files is designated with a large red check mark on each datasets heading (or mindmap branch if you are viewing the archive in the visual-graphic map mode).

Technorati Tags: psychology, school psychology, educational psychology, cognition, intelligence, IQ, IQ tests, cognitive abilities, CHC theory, Cattell-Horn-Carroll, ISIR, WMF, HCA, Human Cognitive Abilities Project, IQs Corner

WMF Human Cognitive Abilities project update 4-15-09

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.



Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. Please visit he special "Requests for Assistance" section of this archive to view a list of manuscripts that we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) Project update - 03-06-09

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.



Current Update: Today's update added information (either original correlation matrix or manuscript--or both) for the datasets listed below:

• FAIRO1A/FAIRO1:  Fairbank, B.A. Jr., Tirre, W., Anderson, N.S. (1991).  Measures of thirty cognitive tasks:  Intercorrelations and correlations with aptitude battery scores. In P.L. Dann, S. M. Irvine, & J. Collis (Eds.), Advances in computer-based human assessment (pp. 51-101).  Dordrecht & Boston: Kluwer Academic.

• FAUL11:  Faulds, B. (1959).  The perception of pitch in music.  Princeton, NJ: Educational Testing Service Technical Report.

• SEGE01:  Segel, D. (1957). The multiple aptitude tests. Personnel & Guidance Journal, 35, 424-432.

• SEIB02:  Seibert, W. F., Reid, J. C., & Snow, R. E. (1967). Studies in cine-psychometry II: Continued factoring of audio and visual cognition and memory. West Lafayette, IN: Purdue University Audio Visual Center. [ERIC Doc. 019 877]

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archived. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Of the new materials posted today, we are in need of assistance in tracking down copies of the manuscripts designated by the red font.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) Project update - 12-31-08

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") . Also, an on-line PPT copy of a poster presentation I made at the 2008 (Dec) ISIR conference re: this project can be found by clicking here.



Current Update: Today's update added information (either original correlation matrix or manuscript--or both) for the nine datasets listed below:

• BERG21: Berger, E. (1977). Field dependence and short-term memory. Dissertation Abstracts International, 38(4-B), 1870. (University Microfilm 77-21266)

• SMIT52: Smith, O. W., & Smith, P. C. (1966). Developmental studies of spatial judgments by children and adults. Perceptual & Motor Skills, 22, 3-73 (Monograph Supplement 1-V22).

• SNOW1/SNOW2/SNOW03: Snow, C. E., & Hoefnagel-Hohle, M. (1979). Individual differences in second-language ability: A factor-analytic study. Language & Speech, 22, 151-162.
  

• SNOW11/SNOW12: Snow, R. E., Lohman, D. F., Marshalek, B., Yalow, E., & Webb, N. (1977). Correlational analyses of reference aptitude constructs. Stanford, CA: Aptitude Research Project, School of Education, Stanford University, Technical Report No. 5.
  

• SNOW20/SNOW21: Snow, R. E., Marshalek, B., & Lohman, D. F. (1976). Correlation of selected cognitive abilities and cognitive processing parameters: An exploratory study. Stanford, CA: Aptitude Research Project, School of Education, Stanford University, Technical Report No. 3.
  

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archive. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

McGrew (2009) now official: CHC and HCA

As previously reported, my article in Intelligence (CHC theory and the Human Cognitive Abilities project:  Standing on the giants of psychometric intelligence research) is now officially published and available (click here).

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, intelligence, cognition, IQ, HCA, CHC, Human Cognitive Abilities, Catell-Horn-Carroll

WMF Human Cognitive Abilities Overview and Update - 2008 ISIR presentation

At the forthcoming 2008 International Society for Intelligence Researchers (ISIR) conference (next week- Dec 11-14), I'm presenting an overview and update of the Woodcock-Munoz-Foundation (WMF) Human Cognitive Abilities project.

For those who cannot attend, I've uploaded a copy of my PPT slides to Slideshare. Click here to view. I would recommend selecting the "full view" icon to better see the detail in the slides.

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, cognition, cognitive, intelligence, HCA, Human Cognitive Abilities, WMF, Woodcock-Munoz Foundation.ISIR

Processing speed (Gs) measures = sustained attention measures ?

[Double click on image to enlarge]

Do processing speed (Gs) measures = sustained attention (SA) measures?

According to a recent CFA study of 199 college students, traditional paper-and-pencil measures of broad cognitive speed (Gs) and sustained attention (SA) may not be measuring different constructs given the shared speeded performance constraint. However, broad decision speed (Gt), as measured by computerized tests, does appear to represent a construct separate from Gs/SA--although the difference could be related to method factor variance (paper/pencil vs computer).

According to Krumm et al. (2008), SA and Gs (which they refer to as mental speed-MS) are theoretically conceptualized to represent distinct constructs. "Individual difference research has always distinguished between MS and SA measures (see Stankov, 1988)."

"Sustained attention (SA) may be defined as the 'ability to allocate processing resources for quite a time (up to some minutes) to a specific task demand while ignoring new stimuli that also demand attention' (Schweizer, 2005, p. 46). Similarly, Hoffmann (1993) describes SA as the ability to devotedly apply oneself to a task while ignoring distractions."

The authors point out that although SA and Gs are conceptually distinct cognitive constructs, they are typically assessed with very similar tasks--simple cognitive tasks where "performance largely relies on the participants’ speed of task processing (i.e., how quickly and correctly one can perform the simple cognitive tasks)."

The CFA results found a near unity (.97) correlation between SA and Gs (see figure above).

It is suggested that clinicians and researchers may need to pursue new approaches to differentiating the measurement of SA and Gs. Furthermore, these findings suggest that the clinical interpretation of Gs tests on individually administered intelligence batteries may be confounded by sustained attention. Most clinicians and books on intelligence test interpretation have typically made this point---and have suggested that sustained attention may be measured by tests that typically are interpreted to measure Gs-like abilities---e.g., perceptual speed (P). It is possible that sustained attention may play a larger role on traditional paper-and-pencil tests than previously recognized.

Of course, caveats are necessary. This study is limited to a young adult age range and 199 subjects. It would be nice to see simlar studies across the entire age range.

Krumm, S, Schmidt-Atzert, L., Michalczyk, K. & Danthiir, V. (2008). Speeded Paper-Pencil Sustained Attention and Mental Speed Tests: Can Performances Be Discriminated?J ournal of Individual Differences, 29,p. 205–216

• Abstract. Mental speed (MS) and sustained attention (SA) are theoretically distinct constructs. However, tests of MS are very similar to SA tests that use time pressure as an impeding condition. The performance in such tasks largely relies on the participants’ speed of task processing (i.e., how quickly and correctly one can perform the simple cognitive tasks). The present study examined whether SA and MS are empirically the same or different constructs. To this end, 24 paper-pencil and computerized tests were administered to 199 students. SA turned out to be highly related toMS task classes: substitution and perceptual speed. Furthermore, SA showed a very close relationship with the paper-pencil MS factor. The correlation between SA and computerized speed was considerably lower but still high. In a higher-order general speed factor model, SA had the highest loading on the higher-order factor; the higher-order factor explained 88% of SA variance. It is argued that SA (as operationalized with tests using time pressure as an impeding condition) and MS cannot be differentiated, at the level of broad constructs. Implications for neuropsychological assessment and future research are discussed.

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, processing speed, Gs, broad cognitive speed, broad reaction time, Gt.attention, sustained attention, vigilance, factor analysis

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. An overview of the project, with a direct link to the archive, can be found at the Woodcock-Muñoz Foundation web page (click on "Current Woodcock-Muñoz Foundation Human Cognitive Abilities Archive") .

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archive. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

CHC Intelligence article now "in press"

Shameless plug update of prior post. My article (McGrew, K. --- Editorial: CHC theory and the human cognitive abilities project: Standing on the shoulders of the giants of psychometric intelligence research" is now officially "in press" in Intelligence. A copy can be viewed at the following link. Until it is published, the formal citation should be:

• McGrew, K. S., CHC theory and the human cognitive abilities project: Standing on the shoulders of the giants of psychometric intelligence research, Intelligence (2008), doi:10.1016/j.intell.2008.08.004

Enjoy

Technorati Tags: intelligence, Human Cognitive Abilities, WMF, CHC, Cattell-Horn-Carroll Theory, IQ, IQ tests, IQ scores, school psychology, educational psychology, cognition, neuropsychology, psychometrics

In press CHC theory overview and HCA project manuscript

I'm pleased to announce that the following manuscript re: CHC (Cattell-Horn-Carroll ) theory and the Human Cognitive Abilities (HCA) project is now "in press" in the journal Intelligence. Readers may be particularly interested in the CHC Theory model figure (Figure 1) which represents the most comprehensive overview of contemporary CHC theory.


McGrew, K. S. (in press). CHC Theory and the Human Cognitive Abilities Project: Standing on the Shoulders of the Giants of Psychometric Intelligence Research. Intelligence.

As per the the Scholary Posting provision of the journals publication agreement, I've made a pre-publication copy of the submitted manuscript available at the HCA Archive web page (it can be found on the "HCA Project Communications and Announcements" branch).

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) Project update: 8-11-08

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. The major updates included the following:

New datasets: A number of new datasets (correlation matrices analyzed in Carroll's 1993 factor analysis meta-analysis) and original journal articles were added to the archive. Nine new correlation matrices were added to the archive. They are listed below.

• BACH01: Bachman, L.F. (1982). The trait structure of cloze test scores. TESOL Quarterly, 16, 61-70.

• BAIR01: Bair J.T. (1951). Factor analysis of clerical aptitude tests. Journal of Applied Psychology, 35, 245-249.

• BANN11: Bannatyne, A.D., Wichiarajote, P. (1969). Relationships between written spelling, motor functioning, and sequencing skills. Journal of Learning Disabilities, 2, 4-16.

• BECH01: Bechtold, H.P. (1947). Factorial study of perceptual speed. Unpublished Ph.D. thesis, University of Chicago.

• FLEI12: Fleishman, E.A., Hempel, W.E. Jr. (1954). Changes in factor structure of a complex psychomotor test as a function of practice. Psychometrika, 19, 239-252.

• FLEI51: Fleishman, J.J., Dusek, E.R. (1971). Reliability and learning factors associated with cognitive tests. Psychological Reports, 29, 523-530.

• FOGA00: Fogarty, G. (1987). Time sharing in relation to broad ability domains. Intelligence, 11, 207-231.

• GRIM01: Grimaldi, J., Loveless, E., Hennessy, J., Prior, J. (1971). Factor analysis of 1970-71 version of the Comparative Guidance and Placement Battery. Educational & Psychological Measurement, 31, 959-963.

• GING21: Singer, H. (1965). Validity of the Durrell-Sullivan Reading Capacity Test. Educational & Psychological Measurement, 25, 479-491.

New manuscript: In addition, the following "in press" editorial manuscript (journal of Intelligence) has been added to the HCA project archive:

• McGrew, K. (in press). CHC Theory and the Human Cognitive Abilities Projects: Standing on the Shoulders of the Giants of Psychometric Intelligence Research. Intelligence.

Request for assistance: The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archive. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

All posts regarding this project can be found here.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) archive project update 7-28-08

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. The major updates included the following:

• A number of new datasets (correlation matrices analyzed in Carroll's 1993 factor analysis meta-analysis) and original journal articles were added to the archive

• The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archive. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

As of today, 60 of Jack Carroll's original correlation matrices are in various stages of archiving (approximately half are complete - i.e., they have both the correlation matrix and a PDF copy of the original publication available).

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.

Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities (HCA) archive project update 6-28-08

The free on-line WMF Human Cognitive Abilities (HCA) archive project was updated today. The major updates included the following:

• A number of new datasets (correlation matrices analyzed in Carroll's 1993 factor analysis meta-analysis) and original journal articles were added to the archive

• An on-line "working" inventory and bibliography of the John "Jack" Carroll correlation matrices being archived is now available. This inventory indicates the status of the archiving of the various datasets.

• A Request for Assistance section has been added.
  

• The HCA project needs help tracking down copies of old journal articles, dissertations, etc. for a number of datasets being archive. Please visit the "master bibliography/inventory" section of this archive and visit the on-line dataset/reference file. When viewing the on-line working inventory, manuscripts/references featured in the color red are those we are currently having trouble locating. If you have access to either a paper or e-copy of any of the designated "fugitive" documents, and would be willing to provide them to WMF to copy/scan (we would cover the costs), please contact Dr. Kevin McGrew at the email address listed at the site.

As of today, 57 of Jack Carroll's original correlation matrices are "in process" for archiving. 27 of the archived datasets are complete - both the correlation matrices and original publications have been posted. 28 other datasets are in various stages of readiness (e.g., either correlation matrix or original publication has been archived--but not both; dataset has been assigned for data entry; etc.).

Please join the WMF HCA listserv to receive routine email updates regarding the WMF HCA project.Technorati Tags: psychology, educational psychology, cognitive, cognition, intelligence, neuropsychology, IQ, IQ tests, IQ scores, HCA, Human Cognitive Abilities, Woodcock-Munoz-Foundation, WMF, John Carroll, CHC, Cattell-Horn-Carroll, HCA project, correlation matrices

WMF Human Cognitive Abilities Project Update: 4 more matrices available

Four more of John "Jack" Carroll's original 1993-analyzed correlation matrices have been added to the WMF Human Cognitive Abilities Archive Project . Click here for the original announcement and description of this project, as well as links to the project archive

The four correlation matrices added today are from the following studies included in Carroll's 1993 treatise.

• ALLE11: Allen, T.W., Rose, A.M., Kraner, L.J. (1978). An information processing approach to performance assessment: III. An elaboration and refinement of an information processing performance battery. Washington, D.C.: American Institutes for Research. (Technical Report No.3, AIR 58500-11/78-TR)

• ALLE12: Allen, T.W., Rose, A.M., Kraner, L.J. (1978). An information processing approach to performance assessment: III. An elaboration and refinement of an information processing performance battery. Washington, D.C.: American Institutes for Research. (Technical Report No.3, AIR 58500-11/78-TR)
  

• ANAS11: Anastasi, A. (1932). Further studies on the memory factor. Archives of Psychology (N.Y.), 22, No. 142

• ARLI01: Arlin, P. (1982). A multitrait-multimethod validity study of a test of formal reasoning. Educational and Psychological Measurement, 1982, 42, 1077-1088

Technorati Tags: psychology, educational psychology, school psychology, neuropsychology, intelligence, cognition, Human Cognitive Abilities, John Carroll, Woodcock-Munoz Foundation, WMF, CHC theory, Gf-Gc, IQ, factor analysis