In the process of scientific research, it is aimed to be able to make meta-analysis or meta-synthesis by classifying the published educational researches for purpose.

Meta, meta-synthesis, meta-analysis, systematic analysis, systematic evaluation, meta-evaluation and comprehend the relationship and the differences between the concepts of compilation. To understand the purpose of the meta-analysis / meta-synthesis studies and to know how the stages of the research process took place Determining the meta-analysis model, creating a hypothesis / research question, knowing what statistics should be used. To limit the meta-synthesis studies and to interpret and evaluate the qualitative findings, to present similar and different aspects and to make new inferences.