Evaluation of psychometric properties of the transgression-related interpersonal motivations inventory

Aim and Through forgiveness the offended person decreases revenge motivations and avoidance from the offender, and is motivated to increase consolation and good will for the offender. The purpose of the present study was to evaluate the psychometric properties of the transgression-related interpersonal motivations inventory (TRIM) in married men and women.Method and Materials: This study was of a correlational type. The participants were 245 males and 247 females selected through a multistage-cluster random sampling among the parents of high school students in Ahvaz. The two scales administrated in this study were: (a) transgression related interpersonal motivations inventory (TRIM) and (b) trait forgivingness scale (TFS). A cronbach’s α was calculated to examine the reliability of the TRIM inventory. moreover the discriminate validity and the principal-components factor analysis were used to examine the validity of the TRIM inventory. The calculated α for the TRIM inventory was 0.85 and 0.91 for revenge and avoidance dimensions respectively and 0.92 for the whole questionnaire. The validity of the inventory was also examined through correlating it to the TFS, given the values of -0.579 and -0.595 for revenge and avoidance dimensions. A principal components factor analysis extracted two factors for the inventory; two items were also omitted because of communalities. A confirmatory factor-analysis (CFA) indicated that a two-factor structure of this inventory was better than a one factor model (for the two-factor model a RMSEA equal to 0.07 was obtained). The results of the present study revealed that the transgression-related interpersonal motivations inventory (TRIM) is a reliable and valuable instrument in forgiveness related studies in marital relationships