APS
31st APS Annual Convention · 2019
Are We Overestimating IQ Reliability? Inconsistent Intraindividual Comparability of Screening IQ and Full-Scale IQ for Three Different Test Batteries.
- Silvia Grieder
University of Basel - Salome Odermatt
University of Basel - Anette Bünger
University of Basel - Florine Schweizer
University of Basel - Alexander Grob
University of Basel
Abstract
Individual-level comparability and validity of Screening IQ versus Full-Scale (FS)IQ were investigated for three intelligence test batteries. Individual 95% confidence intervals overlapped for 57.6% to 97.9% of participants. Age and IQ predicted some of the IQ differences and FSIQ showed incremental validity for scholastic achievement for two test batteries.
Psychometrics
