Development of the Risk Assessment Scale for Ijiri: A Study on Reliability and Validity -

抄録

Ijiri is one of the collective games using communication among peers, and is an act that annoys the target without any intention to hurt the actor's side. Because Ijiri is an in-group play, it has norms that constrain the target to respond compliantly, and the risk that the acdtor will continue to attack the target unintentionally. The purpose of this study was to develop a tool to measure ijiri risk and to examine its reliability and validity. Ijiri risk was measured from the following two parts: part A) invasiveness to the target, and Part B) cognitions related to action supression of the target. A web-based questionnaire survey was administered to 913 participants (327 males, 583 females, and 3 others; mean age = 29.25 years). As a result of exploratory factor analysis, two factors were extracted for Part A and four factors for Part B. The results of the confirmatory factor analysis showed that the goodness-of-fit indices for the Part A and Part B factor structure models were adequate. The results of the reliability analysis showed that the alpha coefficients for each factor were sufficient, confirming their reliability. The following two hypotheses were examined for criterion-related validity: 1)The higher the Part A Invasiveness scale, the higher the scores for the stress cognitive scores and the stress response scores, 2)The higher the score on Part B Action suppression scale, the higher compliant reactive behavior scores. The results of the correlation analysis supported the two hypotheses and demonstrated the validity of this scale.