Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner)
An attempt to share contemporary research findings, insights, musings, and discussions regarding theories and applied measures of human intelligence. In other words, a quantoid linear mind trying to make sense of the nonlinear world of human cognitive abilities.
Monday, May 20, 2013
Cluster analysis of the WJ III/WISC-III intelligence tests: OBG post
This is a OBG (oldie but goodie) post that has new updated links
In a prior shameless plug, I briefly summarized the results of a recently published CHC-based confirmatory factor analysis study of a WJ-III/WISC-III cross-battery data set (Phelps, McGrew, Knopik & Ford, 2005). Following a favorite quantoid mantra ("there is more than one way to explore a data set"), I couldn't resist but conduct a more loosey-goosey (sp?) exploratory analysis of the data.
One of my favorite exploratory tools, given the Gv presentation of the multivariate structure of the data, is hierarchical cluster analysis (sometimes referred to as the "poor man's" factor analysis). Without going into detail, I subjected the data set previously described to Ward's clustering algorithm. As a word of caution, it is important to note that cluster analysis will provide neat looking cluster dendograms for random data....so one must be careful not to over-interpret the results. Yet, I find the looser constraints of cluster analysis and, in particular, the continued collapsing of clusters of tests (and lower-order clusters) into ever increasing broad higher-order clusters very thought provoking---the results often suggest different broad (stratum II) or intermediate level strata (as per Carroll's 3-stratum model).
I present the current results "as is" (click here to view or download). Blogsters will need to consult prior posts to glean the necessary pieces of information to interpret the CHC factor codes and names, the abilities measured by the WJ III tests, etc.
To say the least, some interesting hypothesis are suggested. In particular, I continue to be intrigued by the possibility of a higher-order dual cognitive processing model structure (within the CHC taxonomy) --that is, a distinction between automatic vs controlled/deliberate processing
Stanford-Binet 5 post publication resources: 5-20-13
This is an update of a post made a number of years ago...with new information
Stanford Binet 5 Assessment Service Bulletins (info from Riverside Publishing web page)
Stanford Binet 5 Assessment Service Bulletins (info from Riverside Publishing web page)
- SB5 Assessment Service Bulletin #1: History of the Stanford-Binet Intelligence Scales: Content and Psychometrics
- SB5 Assessment Service Bulletin #2: Accommodations on the Stanford-Binet Intelligence Scales, Fifth Edition
- SB5 Assessment Service Bulletin #3: Use of the Stanford-Binet Intelligence Scales, Fifth Edition in the Assessment of High Abilities
- SB5 Assessment Service Bulletin #4: Special Composite Scores for the Stanford-Binet Intelligence Scales, Fifth Edition
- Quality of Performance and Change - Sensitive Assessment for Cognitive Ability by Gale H. Roid
- Technical Brief - Interpretation of SB5/Early SB5 Factor Index Scores by Gale H. Roid
Saturday, May 18, 2013
Friday, May 17, 2013
Article: Complexity in Searching for the Neural Code
Complexity in Searching for the Neural Code
http://jonlieffmd.com/blog/complexity-in-searching-for-the-neural-code
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Video tutorial: Estimating latent WISC-IV and WAIS-IV scores for individuals--Dr. Joel Schneider
Dr. Joel Schneider has done it again. A brilliant video tutorial demonstrating how latent factor scores can be used, via Excel templates he provides, to interpret scores on the WISC-IV and WAIS-IV. This is complex material but his beautiful visual video tutorial makes it easier to understand the complex constructs. Dr. Schneider continues to push the envelope on psychometric based IQ test score interpretation.
Article: Could a brain scan tell you how smart you are? Research shows intelligence linked to strength of neural connections
Could a brain scan tell you how smart you are? Research shows intelligence linked to strength of neural connections
http://www.dailymail.co.uk/sciencetech/article-2182624/Could-brain-scan-tell-smart-Research-shows-intelligence-linked-strength-neural-connections.html
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Thursday, May 16, 2013
Article: Shocks to the Brain Improve Mathematical Abilities
Shocks to the Brain Improve Mathematical Abilities
http://www.scientificamerican.com/article.cfm?id=shocks-to-the-brain-improve-mathematical-abilities
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Article: Brain Science Upstages DSM-V, So-Called Mental Health 'Bible'
Brain Science Upstages DSM-V, So-Called Mental Health 'Bible'
http://abcnews.go.com/Health/brain-science-upstages-dsm-mental-health-bible/story?id=19170123
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Wednesday, May 15, 2013
Update to Flynn Effect MR/ID Capital Punishment Archive Project (v10; 5-15-13)
I am pleased to announce a long overdue update to the Flynn Effect MR/ID Capital Punishment Archive Project (v10). For those unfamiliar with the Flynn Effect, it concerns the issue of norm obsolescence, primarily on IQ tests, which results in inaccurate and inflated IQ scores as a function of how out-of-date an IQ test norms are--at the time the test is administered to an individual. The topic is also referred to as the secular increase in intelligence scores over time.
Click on the link above to visit the launch page--where the project is described. Three different types of access links are provided at this page. The archive includes approximately 170 references with links to copies of most of the publications. The update includes 37 new or updated references/articles since the last update.
A particular thanks to Dr. Dale Watson for sending me a boatload of articles that I had not previously included in the archive.
Picture: Brain grows till early 20s!
Brain grows till early 20s!
http://twitter.com/JNNP_BMJ/status/334611111167029248/photo/1
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Tuesday, May 14, 2013
Article: A Randomized Controlled Trial of Cognitive Training Using a Visual Speed of Processing Intervention in Middle Aged and Older Adults
A Randomized Controlled Trial of Cognitive Training Using a Visual Speed of Processing Intervention in Middle Aged and Older Adults
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0061624
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Sunday, May 12, 2013
Article: Visualizing the Connectome : Neuroskeptic
Visualizing the Connectome : Neuroskeptic
http://blogs.discovermagazine.com/neuroskeptic/2013/05/12/visualizing-the-connectome/
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Saturday, May 11, 2013
Article Alert : The roles of cognitive and motivational predictors in explaining school achievement in elementary school
The roles of cognitive and motivational predictors in explaining school achievement in elementary school
Weber, Heike S.; Lu, Liping; Shi, Jiannong; Spinath, Frank M.
Learning and Individual Differences, Vol. 25 – 2013: 85 - 92
10.1016/j.lindif.2013.03.008
http://linkinghub.elsevier.com/retrieve/pii/S1041608013000447
Accessed with BrowZine, supported by University of Minnesota.
*****************************************
Kevin McGrew, Phd.
Educational Psychologist
Institute for Applied Psychometrics
Director IAP
www.themindhub.com
*****************************************
Weber, Heike S.; Lu, Liping; Shi, Jiannong; Spinath, Frank M.
Learning and Individual Differences, Vol. 25 – 2013: 85 - 92
10.1016/j.lindif.2013.03.008
http://linkinghub.elsevier.com/retrieve/pii/S1041608013000447
Accessed with BrowZine, supported by University of Minnesota.
*****************************************
Kevin McGrew, Phd.
Educational Psychologist
Institute for Applied Psychometrics
Director IAP
www.themindhub.com
*****************************************
Article Alert: Self-efficacy and academic achievement: Why do implicit beliefs, goals, and effort regulation matter?
Self-efficacy and academic achievement: Why do implicit beliefs, goals, and effort regulation matter?
Komarraju, Meera; Nadler, Dustin
Learning and Individual Differences, Vol. 25 – 2013: 67 - 72
10.1016/j.lindif.2013.01.005
http://linkinghub.elsevier.com/retrieve/pii/S1041608013000071
Komarraju, Meera; Nadler, Dustin
Learning and Individual Differences, Vol. 25 – 2013: 67 - 72
10.1016/j.lindif.2013.01.005
http://linkinghub.elsevier.com/retrieve/pii/S1041608013000071
The Getting of Wisdom: Fluid Intelligence Does Not Drive Knowledge Acquisition
The Getting of Wisdom: Fluid Intelligence Does Not Drive Knowledge Acquisition
Christensen, Helen; Batterham, Philip J.; Mackinnon, Andrew J.
Journal of Cognition and Development, Vol. 14 Issue 2 – 2013: 321 - 331
10.1080/15248372.2012.664590
http://www.tandfonline.com/doi/abs/10.1080/15248372.2012.664590
Christensen, Helen; Batterham, Philip J.; Mackinnon, Andrew J.
Journal of Cognition and Development, Vol. 14 Issue 2 – 2013: 321 - 331
10.1080/15248372.2012.664590
http://www.tandfonline.com/doi/abs/10.1080/15248372.2012.664590
Digit reversal in children’s writing: A simple theory and its empirical validation
Digit reversal in children's writing: A simple theory and its empirical validation
Fischer, Jean-Paul
Journal of Experimental Child Psychology, Vol. 115 Issue 2 – 2013: 356 - 370
10.1016/j.jecp.2013.02.003
http://linkinghub.elsevier.com/retrieve/pii/S002209651300043X
Fischer, Jean-Paul
Journal of Experimental Child Psychology, Vol. 115 Issue 2 – 2013: 356 - 370
10.1016/j.jecp.2013.02.003
http://linkinghub.elsevier.com/retrieve/pii/S002209651300043X
he language of mathematics: Investigating the ways language counts for children’s mathematical development
The language of mathematics: Investigating the ways language counts for children's mathematical development
Vukovic, Rose K.; Lesaux, Nonie K.
Journal of Experimental Child Psychology, Vol. 115 Issue 2 – 2013: 227 - 244
10.1016/j.jecp.2013.02.002
http://linkinghub.elsevier.com/retrieve/pii/S0022096513000428
*
Vukovic, Rose K.; Lesaux, Nonie K.
Journal of Experimental Child Psychology, Vol. 115 Issue 2 – 2013: 227 - 244
10.1016/j.jecp.2013.02.002
http://linkinghub.elsevier.com/retrieve/pii/S0022096513000428
*
Friday, May 10, 2013
Article: Former University of Minnesota president receives Peabody Distinguished Alumnus Award
Congrats to my doctoral mentor and long time friend. One of the all time best professionals
Former University of Minnesota president receives Peabody Distinguished Alumnus Award
http://www.noodls.com/viewNoodl/18564820/vanderbilt-university/former-university-of-minnesota-president-receives-peabody-di
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Wednesday, May 08, 2013
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