Page 53 - Azerbaijan State University of Economics

Ercan Yılmaz, Gulnar Jafarova: Leadership and School Climate in Effective Schools: A Meta-
Analysis

study is carried out, publication type and the place where the study is carried out

were recorded on the form.
Inclusion Criteria
The inclusion criteria for the studies to be analyzed within the scope of the research
are as follows:
 Articles written in 1990-2016 which were published in refereed and national
and international journals.

 Post-graduate and doctorate dissertations written in 1990-2016 at the national
and international levels.

 Studies which were carried out making use of the quantitative method
according to the perceptions of teachers and/or administrators who work in
official and private pre-schools, primary schools, middle-schools and high-
schools giving education in the area of educational sciences.

 Studies which involve suitable statistical methods and data with the condition
that they comply with the above criteria.

Exclusion Criteria
The exclusion criteria determined for the study are as follows:
 Studies carried out with samples other than teacher and/or administrators,

 Studies which only aimed at measuring school effectiveness,
 Studies which do not have suitable statistical data for meta-analysis to be
done.

FINDINGS
In this section, school homogeneity analyses based on the relationship between
effective schools and leadership and school climate, effects sizes related to each
variable and the forest graphs related to these values and findings on moderator
analysis and publication partiality analyses were given place to. In the evaluation of
correlation levels, Cohen, Manion and Morrison’s (2005:202) classification was
used. This classification is as follows:

Correlation between ±0.20 – ±0.35: Very low level of correlation
Correlation between ±0.35 – ±0.65: Medium level of correlation
Correlation between ±0.65 – ±0.85: High level of correlation
Correlation over ±0.85: Very high level of correlation

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