Sunday, January 02, 2011

MDS analysis of WISC-IV

It is no secret that I'm a big fan of multidimensional scaling (MDS--especially Guttman's Radex) model as a supplement to factor analysis of cognitive tests. While going thru some of my e-files I found a recent 3D MDS analysis of the WISC-IV. Below is the abstract and final 3D model. Clicking on images should take you to a larger version of the image.








For those interested, the content/stimulus dimension of my proposed cognitive ability assessment design and interpretation matrix is due to my application of MDS to data from the WJ III and the various Wechsler batteries. The complete "beyond CHC theory" presentation can be found at a prior post.



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