Abstract
In this study, an investigation was conducted to seventy-five students in the classes of music at junior high school. Three musical pieces employed were selected from the list of appreciation instruction introduced in a textbook based on the course of study (MEXT),and were considered as having three different levels of psychological complexity. Participants listened to the assigned music seven times at the beginning and end of classes held once a week, and rated on twelve7-point semantic differential scales four times only at odd order of repetitions. Factor analysis revealed Evaluation factor and Complexity factor, and the factor scores were analyzed by ANOVA regarding given musical pieces(DM),musical career of participants(MC)and times of repeated exposure(RE).The result showed that main effects on Evaluation factor [like-dislike] were significant with DM (Vn Concerto < The Rite of Spring=Figaro) and MC (with musical career <without musical career)and those on Complexity factor [simple-complex] were significant with DM (Figaro = Vn Concerto <T he Rite of Spring), MC (without musical career < with musical career)and RE (7th = 5th = 3rd < 1st)respectively, and no significant interactions were found. Then the effect of repeated exposure to classical music on subjective evaluation and psychological complexity for junior high school students were discussed.