Institute of Educational

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The main objective of this study was to investigate the relationship between Distributed Leadership and Organizational Effectiveness of high schools in Hamadan city. The research method was descriptive-correlation. The statistical population included all high school teachers of Hamadan in the academic year of 2015. Based on classical random sampling, using Krejcie and Morgan chart, 335 teachers were chosen. Two questionnaires were used for data collection, Distributed Leadership Questionnaire and Organizational Effectiveness Questionnaire. The reliability of the questionnaires was calculated by Cronbach’s Alph Coefficient which was acceptable (%91 and %99). Data were analyzed by descriptive statistics, and inferential statistics such as Pearson correlation coefficient, t-test for the independent groups, ANOVA and stepwise regression. Regression Analysis indicated the following results. The status quo Distributed Leadership Style and Organizational Effectiveness were above average. There were significant positive correlations between Distributed Leadership Style and Organizational Effectiveness advantage. Moreover, professional development component had greatest impact on Organizational Effectiveness.

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The purpose of this research was to conduct a meta-analysis of the studies on the effect of blended learning on academic performance in Iran. The meta-analysis was based on the estimated effect size of blended learning on academic performance. 211 studies were identified in the period 2010-2017, of which 20 research documents were selected using non-probability (purposive) sampling. Initial data analysis was done in SPSS using the PRISMA checklist, and Cohen’s model was used to interpret the results. The results showed that there is a significant positive relationship between blended learning and academic performance. The estimated effect size for this relationship was 0.684, which is higher than the medium level in Cohen’s model (0.5). This indicates the real effects of the blended learning approach on academic performance. Overall, the results showed that the blended learning approach, with proper needs assessment, design, implementation, evaluation, and feedback, can be a logical and flexible strategy for improving academic performance.
 

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The aim of the research was the study of the relationship between empowerment of teachers and student’s use of networks. The research community was every teachers and student of sixth grade of girls public schools which by using multistage cluster sampling method have been chosen from 100 persons of teachers and students from seven areas of Tehran fifth district. Data tool collection was psychological empowerment questionnaire and the amount of using from social networks questionnaire. Reliability of the tool was calculated and validated by using Cronbach's alpha. Data were analyzed using descriptive and inferential statistics (Pearson correlation coefficient and stepwise regression analysis) and was analyzed by SPSS software. The results showed there is a negative and meaningful relationship between the components of teachers empowerment consist of meaningfulness, competency, autonomy, with the amount of student’s use of social networks and there is a positive and meaningful relationship between the effectiveness of teachers with student’s use of social networks. Competency as a variable explains 20/4 and effectiveness explains 23/7 Percent of the variance of social networking.