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  • 标题:Constructing and validating the self-efficacy scale for English language learners’ textbooks through Rasch measurement model
  • 本地全文:下载
  • 作者:Hamedi, Seyyedeh Mina ; Pishghadam, Reza ; Ghazanfari, Mohammad
  • 期刊名称:International Journal of Research Studies in Language Learning
  • 印刷版ISSN:2243-7754
  • 电子版ISSN:2243-7762
  • 出版年度:2014
  • 卷号:3
  • 期号:6
  • 语种:English
  • 出版社:Consortia Academia Publishing
  • 摘要:The present study examined the construct validity of Self-Efficacy Scale for English Language Learners' Textbooks (SES-ELLT) using Rasch measurement model. To this end, a sample of 150 language learners from various language institutes participated in the study for the investigation of psychometric properties of SES-ELLT, particularly the reliability and construct validity of the scale. The participants were asked to rate the importance of 36 self-efficacy items for the English language textbooks. Through the Rasch analysis scale reliability, item fit, unidimensionality, and category functioning were investigated. Consequently, the findings demonstrated a fairly high reliability both for the person separation (0.81), and the item separation (0.87). Moreover, three items were detected as misfitting and were discarded, accordingly. In all, the scale exhibited a good unidimensionality and the items sufficiently covered the range of person abilities; however, a 4-category rating scale seemed to be a better alternative as the third and fourth thresholds did not have the required advance between step calibrations in a 5-category rating scale.
  • 关键词:self-efficacy;textbooks;Rasch measurement model;reliability;construct validity
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