Development and Validation of the Implicit Memory Theory Scale
Abstract. The present research developed and tested a new individual-difference measure of beliefs about autobiographical memory. We assumed that someone's implicit memory theory results in high or low skepticism about memory credibility. Based on the metamemory literature we hypothesized that this skepticism might be a predictor of memory accuracy in various memory tasks. The first phase of the research developed the Implicit Memory Theory Scale (IMTS). The exploratory factor analysis revealed three factors that were converted into three subscales of the 37-item measure. Cronbach α coefficients and test-retest correlations showed acceptable to high reliability for the global scale and three subscales. Validation studies indicated that the scale was sensitive to individual differences in professional knowledge of autobiographical memory and manipulation that involved providing respondents with this kind of knowledge. As predicted, IMTS scores were associated with accuracy in a misinformation experiment. The potential utility of the IMTS for memory research and an applied setting is discussed.