Self-esteem is also used as an independent variable—that is, as the "cause" of behavior. An individual is said to behave in a particular manner because of a high or low level of self-esteem. Through knowledge of the variable, then, we can try to predict and understand behavior.
Self-efficacy has been defined as a person's belief in their ability to achieve an outcome. To measure self-efficacy, the Generalized Self-Efficacy Scale (GSES; Schwarzer and Jerusalem, 1995) was used. This is a ten-item measure scored on a 4-point Likert scale from (1) not at all true to (4) exactly true.