リアクタンス特性尺度の検討

The pnrpose of this study was to find the most valid and reliable scale measuring reactance traits.This study dealt with the threat of anti-attitudinal persuasion. Subjects were 150 nniversity str~de~lwtsh o were eligible for this experiment, and they were randomly assigned to high and low threat conditions. The procedures of the experiment were as follows: (1) pre-measurement of dependent variables, (2) measurement of reactance traits, (3) manipulation of the threat variable and presentation of a persuasive message, (4) post-mcilsurement of dependent variables. To measure reactance traits, three kinds of reactance scales were used: I-Iong's Psychological Reactance Scale (Hong's Scale: 14 items), Merz's Questionnaire for the Measurement of Psychological Reactance (Merz's Scale: IS items), and Merz's Scale revised by Imajo (Merz-Imajo's Scale: 28 items). The General Psychological Reactance Scale (General Scale: 42 items), which consisted of all items contained in the three scales, was also examined. Results showed that reactance traits measured by the General Scale had the most main effects and interactio~l effects with the threat variable of the fonr scales. Thus, it was concluded that the General Scale had the greatest validity and reliability of the four scales. The General Scale consisted of four-factors with 23 items (4 items from the Hong's Scale, 10 items from the Merz's Scale, and 9 items from the Merz-Imajo's Scale).