The Problem of Generalization in Psychological and Educational Research (An Evaluation Study of University Thesis at the Universite of Oran)
Generalisation is the ability to apply the results from a study or experiment to the wider target population. In this article, I open a debate about the generalization problematic in psychological research. We have addressed the definition of generalization and its logic, and we reviewed the types of generalization in both quantitative and qualitative research. Three models of generalization, as proposed by Firestone, are discussed in this paper: classic sample-to-population (statistical) generalization, analytic generalization, and case-to-case transfer (transferability) At last we presented some criticism of generalization, which was flowing in its entirety on the insufficiency of inductive arguments (POPPER, 1959), or because of the nature of psychology and the instability of its phenomena.
We analyzed the thesis published on level of the University of Oran between the years 2012-2015 in terms of Sampling mode and appropriateness for a set of standards relating to the generalization. We found that there are errors in sampling methods is mainly centered on the selection of the Accidental Sample and call it random Sample. It also is not followed steps required to identify the sample, which makes it difficult to be considered representative of the population original and therefore not possible to generalised results.