Question

What are some variables, other than a genuine decline in verbal ability, that might lead to a lower VCI score when the client is tested a "second" time the WAIS-IV?

Answer 1

Numerous factors could cause a decrease in VCI score on a second administration of the WAIS-IV, including test fatigue, practice effects, and psychological stress, which all can significantly affect an individual's test performance.

Step-by-step explanation:

Several variables, other than a genuine decline in verbal ability, might lead to a lower Verbal Comprehension Index (VCI) score on a second administration of the WAIS-IV. Factors such as test fatigue, practice effects, and emotional or psychological stress can significantly impact test performance.

Test fatigue may occur if the individual is tested for prolonged periods or without adequate rest between assessments. Practice effects, often a result of familiarity with the test items, can lead to improved performance on some aspects of the test while not genuinely reflecting changes in the underlying cognitive abilities. Other sources, such as a stressful life event, emotional turmoil, or insufficient motivation, can affect an individual's focus and performance.

An understanding of these variables is crucial for clinicians, as they interpret test scores taking into consideration the broader context and avoid attributing all changes in scoring to a change in cognitive abilities alone.