Seemingly anomalous full scale IQ scores on the WAIS-III and the WISC-III

The Canadian and American WISC-III and the American WAIS-III standardization data were used to investigate the prevalence of "seemingly anomalous" Full Scale IQ (FSIQ) scores for all possible Verbal and Performance sums of scale score combinations. It was found that 6% of FSIQ scores in th...

Full description

Saved in:
Bibliographic Details
Published in:Current Psychology 2004-03, Vol.23 (1), p.86-94
Main Authors: Reddon, John R., Vander Veen, Sarah, Reddon, Jan E.
Format: Article
Language:English
Subjects:
Age groups
Intelligence
Males
Standardization
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Canadian and American WISC-III and the American WAIS-III standardization data were used to investigate the prevalence of "seemingly anomalous" Full Scale IQ (FSIQ) scores for all possible Verbal and Performance sums of scale score combinations. It was found that 6% of FSIQ scores in these three samples were seemingly anomalous (i.e., fell outside of their associated VIQ/PIQ intervals). Interestingly, the anomalous FSIQ scores were more prevalent at the extremes of the FSIQ distribution, and did not occur when the VIQ/PIQ interval was greater than 12. Additionally, anomalous FSIQ scores were generally further from the center of the FSIQ distribution than were the associated VIQ and PIQ scores. Also, when the VIQ/PIQ interval contained FSIQ (the non-anomalous case), FSIQ tended to be located distally in the half-segment of the VIQ/PIQ interval furthest from the center of the FSIQ distribution. A statistical explanation for the findings is provided.[PUBLICATION ABSTRACT]
ISSN:0737-8262
1046-1310
1936-4733
DOI:10.1007/s12144-004-1011-4