Psychometric properties of self-efficacy scale for English language learners

The self-efficacy scale for English language learners (QESE) was devised by Wang (2014) based on Bandura's self-efficacy theory to be applied to school contexts in order to measure English learner's self-efficacy. The aim of the present study was to evaluate the psychometric properties this scale.
The population included all the senior high school students studying in District One and Two of Hamadan, during the 2015-2016 academic years among whom 408 participants were selected as the sample through multistage cluster sampling.
The validation results showed that QESE validity had the values of 0.902, 0.912, and 0.864 using Cronbach's alpha, lambda squared, and Guttman split-half, respectively. Further analysis confirmed the content and construct validity of the QESE. The results of the confirmatory factor analysis, as the primary form, confirmed the four factors of efficacy in reading, efficacy in writing, efficacy in listening, and also speaking efficacy.
According to the results, it can be maintained that QESE is a reliable and valid instrument to measure self-efficacy in English learning and it can be used as a useful tool to assessment self-efficacy in English language learners.