METHOD: After translating all 39 items of the questionnaire into Bangla, it was administered on 206 children, aged 3 to 6 years, recruited randomly from ten preschools in Dhaka. The schools were selected randomly from the official list of preschools prepared by the Dhaka City Corporation. Class teachers of the respective children completed the questionnaire with the assistant of research assistants.
RESULTS: The Bangla version of the questionnaire retained all 39 items, with seven factors as they were in the English version. The Bangla version shows sufficient reliability (Cronbach's alpha = 0.87; test-retest reliability = 0.89 for whole questionnaire and .79-.89 for sub-scales; inter-rater reliability = 0.88 for whole questionnaire and .79-.88 for sub-scales), and validity (correlated positively with the English version; r = 0.85).
CONCLUSION: Due to its robust psychometric properties, the Bangla DMQ-18 is suggested to be used for Bangladeshi preschool children to assess their mastery motivation.
METHODS: We conducted two independent rounds of large-scale surveys that yielded data from 621 Bangladeshi adolescents (AgeMean ± SD = 16.44 ± 1.32), of which 378 were males, and 244 were females. The participants completed the Bangla CS. A subset of the participants (n = 160) also completed the Bangla Beck's Hopelessness Scale (BBHS)-a measure of hopelessness.
RESULTS: Exploratory factor analysis on the first-round data (n = 340) discarded six items and retained 17 items and revealed a unidimensional factor structure. Confirmatory Factor Analysis on the second-round data (n = 281) supported the unidimensional structure (CFI = 0.94, TLI = 0.93). Measurement invariance analysis indicated that the unidimensional structure was robust across gender (143 males vs 139 females). The scale exhibited a negative correlation with BBHS revealing the scale's concurrent validity (r = - 0.16, p 0.70) across a sizable range of communication skills continuum (θ = - 5.3 to 2.3) and had excellent marginal reliability (0.80). All items had adequate discriminating power (0.90 ± 0.20).
CONCLUSION: The psychometric analysis of the 17-item Bangla-CS indicated that the scale is reliable and valid. We recommend that researchers and mental health practitioners utilize this scale to evaluate communication skills among Bangladeshi adolescents.