Abstract
The purpose of the present study is to clarify the pattern of the developmental change of self-assessment on everyday memory in adulthood using the Everyday Memory Questionnaire (EMQ). A total of 299 adults (99 younger adults aged 19-25 years, 97 middle-aged adults of 38-55 years, and 103 older adults aged 63-75 years) partcipated in this study. The participants were asked to rate the 28 item, each describing an everyday activity which might involve forgetting or memory failures, with a 9-point scales from 1 (not at all in the last 6 month) to 9 (more than once a day). The results showed that the developmental differences among younger (Y), middle-aged (M), and older (O) participants in ratings for each of 28 items were roughly classfied into 4 patterns; (a) Y=M=O, (b) Y>M>O, (c) Y=M>O, (d) Y>M=O.