Meta-analysis of the relationship between sectarian and Quarrel: Emphasis on ethnicity moderator variable

A vast number of published studies in the field of humanities and social sciences have suggested that the mastery of all aspects of a problem to a large extent is not impossible. Hence it is important to combine research and use a systematic review. So, The aim of the present study is using of meta-analysis to combine the results of studies and analysis on the correlation between sectarian and group quarrel. In order to present meta-analysis, 14 relative researches that have been done with the point of exploring the relation between sectarian and group quarrel in the last decade, have been presented. these mentioned researches have been conducted by using survey method and applying the questionnaire tool in different regions and different satistical societies and relying on the steady measurments. In the first step of the selected research assessment, the assumptions of homogeneity and lack of publication bias examined, which the results indicated that the examied researches had no publication bias. Secondly, the coefficient effect size and moderating role of population year and ethnicity was evaluated using CMA Second Edition software. The Finding showed the size of the effect between sectarian and group quarrel that is equivalent to 0/38 that in terms of Cohen Interpretation system, this effect has been analisised moderately. Also, considering ethnicity as a moderating variable, the coefficient of effect size were evaluated for Ethnic Azeris (/0481) higher than ethnic Arabs (0/363), ethnic Lor (0/343) and ethnic Kurds (0/330).