Stupid IQ test

Interesting article “in press” in Intelligence that compares WAIS and Stanford Binet IQ scores (across different editions except the current SB5 and WAIS-IV) for adults with intellectual disability (ID/MR).  Although the mixing together of scores across different editions makes it impossible to make SB/WAIS-specific edition comparisons, the finding that the WAIS scores were, on the average (mean), almost 17 points higher may surprise many psychologists.  The authors discuss the real-life implications (i.e., Atkins ID death penalty decisions; eligibility for SS benefits, etc.) of different scores from different tests.  As outlined in a prior IAP AP101 special report , differences of this magnitude between different IQ tests should not be surprising.  Silverman, W., Miezejeski, C., Ryan, R., Zigman, W., Krinsky-McHale & Urv, T.

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IQ test selection could be life-or-death decision: WAIS v SB score differences in ID/MR sample

The latest and greatest from ISIR’s journal Intelligence. Beier, M.

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ISIR journal Intelligence: Vol 38 (1), 2010

As a member of the Interactive Metronome Scientific Advisory Board I am often asked to review published research studies that have investigated the IM method. Recently, a investigation of the effectiveness IM (which is a mental timing -based intervnetion) with children with attention deficit disorder and developmental coordination disorders was published in the International Journal of Rehabilitation Research . The citation and abstract for the article are reproduced below.

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Efficacy of Interactive Metronome treatment study (Cosper, 2009): An example of a "non-example" of IM efficacy research

Sent from KMcGrew iPhone (IQMobile). (If message includes an image-double click on it to make larger-if

Visual-spatial thinking and academic achievement: A concurrent and predictive validity study by Yazzie, Anslem, Ph.D., Northern Arizona University, 2009 , 92 pages; AAT 3370650 Abstract Forty-eight students were administered the Spatial Relations and Picture Recognition subtests of Woodcock-Johnson III Visual-Spatial Thinking Cluster, Rover and Triangles subtests of the Kaufman Assessment Battery for Children-Second Edition Visual Processing Cluster, and Word Reading, Math Computation, and Spelling subtests of the Wide Range Achievement Test-Four Edition. According to previous research, several assumptions regarding visual-spatial thinking’s correlation with achievement, concurrent validity with other measures, and differences in gender and ethnicity had been found to be variant

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Dissertation dish: WJ III/KABC-II Gv and ach AND Gs, RAN, Ga, work mem and reading

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 “)

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

Thanks to TechPsych for the tip on this blog. I read “In the minds eye” many years ago. It was an excellent book

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Gv - In the minds eye blog

Announcing Applied Psychometrics 101: IQ Score Difference Series–#1 Understanding global IQ test correlations. ( click here to view and/or download) Toady I’m announcing the first in what I hope is a series of applied psychometric brief reports. The goal of this project is to explain basic psychometric issues to help professionals and the public better understand psychological measurement, IQ testing, etc

Excerpt from: 
Why can IQ scores can differ: Applied Psychometrics 101 Report #1–Understanding global IQ test correlations

The seventh  in the series Art and Science of Applied Test Development is now available. The seventh module ( Part G:  Psychometric/technical statistical analysis:  External ) is now posted and is accessible via SlideShare.

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Applied Psych Test Design Part G: Psychometric/technical statistical analysis: External