Sharif Mombeyni, Alireza Haji Yakhchali, Manijeh Shehni Yailagh, Gholamhoseyn Maktabi,
Volume 7, Issue 3 (volume7, Issue 3 2019)
Abstract
Since imagination can help students' academic achievement and creativity and lead to the flourishing of talents and the development of ideas, the purpose of the present study was to validate the Liang, Su, Chang and Lin imagination questionnaire. The research method, correlation and statistical population of this study were all secondary school students in Ahvaz. 300 students (150 boys and 150 girls) were selected by multistage random sampling method. The Liang, Su, Chang and Lin imagination questionnaire were used to measure imagination. The results of exploratory factor analysis showed that 10 items in the form of two factors, creative imagination and productive imagination, constitute the imagination scale. Also Confirmatory factor analysis results showed that the components of creative imagination and productive imagination measured imagination with good power. The reliability and validity analysis of the imagination components showed that the questions were sufficiently accurate in measuring the imagination components. Cronbach's alpha coefficients were reported between 0.66 and 0.70 which indicated that both components have the necessary precision in determining the structure of imagination. The results of this study showed that the questionnaire has good validity and reliability and is suitable for imagination. Imagination Questionnaire has acceptable psychometric properties in Iranian students' community and researchers can use it as a valid tool in imagination measurement.
Dr. Morteza Omidian, Khadije Kheneyfar, Dr. Gholamhossein Maktabi, Dr. Manije Sheheni Yeylagh,
Volume 12, Issue 3 (Volume12, Issue 3 2024)
Abstract
Considering the claims of bilingualism theories and their effect on executive functions, this research was conducted with the meta-analysis method in order to investigate the effect of bilingualism on executive functions. The purpose of this research was to combine the researches done in the field of executive functions. In this research, meta-analysis was used as a tool to determine, collect, combine and summarize research findings related to the effect of bilingualism on executive functions. For this purpose, articles published between 2000 and 2023 were reviewed and 436 researches were found, of which 30 researches were included in the meta-analysis based on the research criteria (causal-comparative research method, having a experimental and control group, and descriptive statistics). The number of subjects in the whole research was 1412 people. The findings of the research showed that the overall effect size of the studied research was 0.633 (p<0.001) for the fixed effects model and 0.771 (p<0.001) for the random effects model, which is significant for both and it shows that bilingualism has an effect on executive functions.
