טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentKoren Ofri
SubjectIs it all in your head? Actual Ego Depletion
and Perceived Resource Deficiency on
Performance
DepartmentDepartment of Industrial Engineering and Management
Supervisor Dr. Liat Levontin


Abstract


According to the strength model of self-control (Baumeister, Bratslavsky, Muraven, & Tice, 1998), self-control draws on a limited resource that is common for all self-control demanding tasks and is depleted after a period of exertion. Hence, performance on a subsequent self-control demanding task is diminished due to ego-depletion, an actual lack in self-control resources.       In this research, we draw on the concept of perceived resources, proposing that it is not only the resources themselves, but also the perception of resources that can affect behavior. Specifically, it is proposed that perceived resources (resource deficiency vs. resource abundance) can moderate the effect of ego depletion on performance of a self-control demanding task. This hypothesis was examined in two studies. Results showed that as expected, perceived resources moderated the effect of ego depletion on performance of a self-control demanding task. Specifically, we show that under a resource deficiency mindset, performance was worse in the ego depletion condition than in the no ego depletion condition. However, no such differences in performance were found under a resource abundance mindset, suggesting that perceived resource abundance can prevent the occurrence of ego depletion.      By that, the current research offers a theoretical contribution to the self-control literature as well as practical implications on how to avoid ego depletion.