The present study aimed to investigate the reliability and factor structure of the self-regulating capacity in vocabulary learning strategies scale (SRCvoc) in the Iranian EFL context. To this end, the original (SRCvoc) questionnaire (Tseng, Dornyei, & Schmitt, 2006) was translated into Persian, using a translation/back-translation procedure. Then, the Persian version of the SRCVOC was piloted to 43 high school students and showed acceptable internal consistency reliability (α = .81). In the main phase of the study, a sample of 1167 high school students (grades 9-12) from fifteen high schools in three Iranian cities completed the Persian SRCvoc. Based on the results, the Persian version of the scale demonstrated acceptable internal consistency reliability (<em>α </em>= 0.81). The factor structure of the translated version of the measure was investigated through a series of factor analyses. The results showed that the translated SVLSQ is composed of one dimension with five subcomponents, with a different factor structure as compared to the original questionnaire. The findings of the study suggest that the Persian version of the SVLSQ is a reliable and valid instrument for measuring self-regulatory vocabulary learning strategies in Iran.
