Digital Commons Network^™

Academic Work Ethic In Middle School Students: Extending Scale Research And Investigating Construct Validity, Emily Pendergrast Taylor

Doctoral Dissertations

This three-study dissertation was designed to: 1) extend the research on Parkhurst’s (2013) Academic Work Ethic-Student (AWE-S) scale, 2) develop and analyze reliability of the Academic Work Ethic-Teacher (AWE-T) scale, and 3) expound on the construct validity of academic work ethic by comparing AWE-S and AWE-T scores to external factors (i.e., grades, perceived support, and parental work ethic) and Grit (Duckworth, 2007), a similar construct. Research was conducted in both rural and urban middle schools in Tennessee and included student, teacher, and parent participants.

Both scales were found to have high reliability coefficients and stable factor structures. Student scale (AWE-S) …

Behavioral And Neural Mechanisms Of Impulsive Choice, Jesse Mcclure

Doctoral Dissertations

Impulsive choice is defined as the preference for a small immediate reward over a larger delayed reward. Individual variablity in impulsive choice correlates with many socially relevant behaviors. Although forms of impulsive choice have been studied in both behavioral ecology and psychology, the exchange of knowledge between these fields is just beginning. Drawing from both of these fields will improve our research methods allowing for a more detailed understanding of this complex behavior. Existing tasks to measure impulsive choice conflate the delay and quantity of the reward. To address this, I have drawn from foraging research to establish a method …