A-147 The Relationship of FSIQ and Executive Functioning Performance to a Self-Report Measure of Shifting (BRIEF-Shift)

Abstract

Objective This study aimed to clarify the relationship between a self-report measure of set-shifting and performance-based measures of set-shifting as compared to FSIQ using the Trail Making Test-Part B (TMT-B), Wisconsin Card Sorting Test (WCST) perseverative responses, Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) self-report shift index, and the full-scale intelligence quotient (FSIQ) from the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV). Method Data from 65 individuals (34 females, mean age 36) from an outpatient clinic in Chicagoland was analyzed using 2 block-wise hierarchical regression analyses with BRIEF-A shift as the outcome variable and TMT-B, WCST, and WAIS-IV FSIQ data as the predictor variables. Results Intelligence accounted for 4.7% (R2 = 0.047, p = 0.08) of the unique variance in BRIEF-A Shift self-report. In contrast, the TMT-B and WCST data accounted for little unique variance in the model and was to significantly correlated (R2 = 0.028, p = 0.416). Conclusion The current data somewhat surprisingly indicates that FSIQ is a more robust predictor of BRIEF Shift than performance-based measures of cognitive flexibility. Implications including an understanding of response bias, general aptitude, and normative comparisons will be discussed.