Evaluation of the Wechsler Individual Achievement Test-Fourth Edition as a Measurement Instrument.

The Wechsler Individual Achievement Test (WIAT-4) is the latest iteration of a popular instrument that psychologists employ to assess academic achievement. The WIAT-4 authors make both pragmatic and measurement claims about the instrument. The pragmatic claims involve being useful for identifying individuals in certain academic achievement-related groups (e.

The effects of Wechsler Intelligence Scale for Children-Fourth Edition cognitive abilities on math achievement.

This study used structural equation modeling to examine the effect of Stratum III (i.e., general intelligence) and Stratum II (i.