This measurement study reports on the adaptation of the Critical Incident Attribution Measure (CIAM) from the domains of psychology, sport and education into the Japanese second language acquisition (SLA) domain at the tertiary level. The procedure was based on the guidelines of the International Test Commission (ITC; Hambleton, Merenda, & Spielberger, 2005) and the recommendations of Wilkinson and the Task Force on Statistical Inference (1999). This involved doing forward (into Japanese) and back (into English) translation using two near-native speakers of English with some training in psychometric testing to check for any cultural themes that may not be relevant in the target population. The analytical procedure involved looking at the univariate and multivariate normality of score distribution, determining the reliability estimates, and performing a confirmatory factor analysis (CFA) using structural equation modeling (SEM). The participants for this study were 579 SLA students at four universities in western Japan whose major field of study included English, welfare, science, education, law, engineering, medicine, and business. The results were satisfactory indicating that the CIAM is arguably ready for further testing in the field.