Factor and Predictive Validity of the Reynolds Intellectual Assessment Scales in a Collegiate Sample

2007 ◽  
Author(s):  
Alexander Beaujean ◽  
Michael W. Firmin ◽  
Jared D. Michonski ◽  
Theodore P. Berry ◽  
Courtney Johnson
Keyword(s):  
Predictive Validity ◽  
Intellectual Assessment ◽  
Assessment Scales

Validation of the Frey and Detterman (2004) IQ prediction equations using the Reynolds Intellectual Assessment Scales

2006 ◽  
Vol 41 (2) ◽  
pp. 353-357 ◽  
Author(s):  
A. Alexander Beaujean ◽  
Michael W. Firmin ◽  
Andrew J. Knoop ◽  
Jared D. Michonski ◽  
Theodore P. Berry ◽  
...  
Keyword(s):  
Prediction Equations ◽  
Intellectual Assessment ◽  
Assessment Scales

Factorial validity of the Reynolds Intellectual Assessment Scales for referred students

2009 ◽  
Vol 46 (10) ◽  
pp. 932-950 ◽  
Author(s):  
A. Alexander Beaujean ◽  
Sean M. McGlaughlin ◽  
Allison S. Margulies
Keyword(s):  
Factorial Validity ◽  
Intellectual Assessment ◽  
Assessment Scales

The Reynolds Intellectual Assessment Scales: Measurement Invariance Across Four Language Groups

2018 ◽  
Vol 37 (5) ◽  
pp. 590-602
Author(s):  
Jasmin T. Gygi ◽  
Thomas Ledermann ◽  
Alexander Grob ◽  
Myriam Rudaz ◽  
Priska Hagmann-von Arx
Keyword(s):  
Measurement Invariance ◽  
Factor Structure ◽  
General Factor ◽  
Language Group ◽  
Single Factor ◽  
Intellectual Assessment ◽  
Multiple Group ◽  
Language Groups ◽  
Main Components ◽  
Assessment Scales

The Reynolds Intellectual Assessment Scales (RIAS) measures general intelligence and its two main components, verbal and nonverbal intelligence, each comprising of two subtests. The RIAS has been recently standardized in Denmark, Germany, Switzerland, and Spain. Using the standardization samples of the U.S. ( n = 2,438), Danish ( n = 983), German ( n = 2,103), and Spanish ( n = 1,933) versions of the RIAS, this study examined measurement invariance across these four language groups for a single-factor structure, an oblique two-factor structure with a verbal and nonverbal factor, and a bifactor structure with a general, a verbal, and a nonverbal factor. Single-group confirmatory factor analysis (CFA) supported the oblique two-factor and bifactor structure for each language group but not the single-factor structure. The bifactor analysis revealed that the general factor accounted for the largest proportion of common variance in each language group, while the amount of variance accounted for by the two specific factors was small and their reliabilities low. Multiple-group CFA supported scalar invariance in both, the oblique two-factor and bifactor structure.

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