Date of Award
Master of Arts in Psychology
W. Grant Willis
A multitrait-multimethod paradigm was used to assess the stability, discriminant validity, and convergent validity of two tasks of executive functioning within a sample of 96 normal preschoolers. Memory served as the discriminant construct against which the executive-function construct was compared, and each construct was measured verbally and nonverbally. A matrix of cross-validated, Pearson product-moment correlation coefficients was computed to evaluate the psychometric properties of the executive-functioning tasks. Results did not support the construct validity of the selected tasks, as measures of executive functioning in this preschool population. Instead, the patterns of correlation coefficients derived suggested that the methods and traits explained nearly equal amounts of variance in the measures. Limitations of the current study and implications for future research are discussed.
Gnys, Judith Alison, "Validation of Executive Function Tasks Through a Multitrait-Multimethod Approach" (1990). Open Access Master's Theses. Paper 1579.