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Kocakaya, Serhat – Educational Research and Reviews, 2011
The main aim of this study is to investigate the biased effects which affect scientific researches; although most of the researchers ignore them, and make criticism of the experimental works in the educational field, based on this viewpoint. For this reason, a quasi-experimental process has been carried out with five different student teachers…
Descriptors: Foreign Countries, Validity, Educational Experiments, Student Teachers