Date of Award


Degree Type


Degree Name

Master of Arts in Psychology



First Advisor

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.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.