Un sistema de clasificación de los diseños de investigación en psicología

Title: A classification system for research designs in psychology. Abstract: In this work we devise a conceptual framework and develop some basic principles to promove a classification system for the most usual research designs in psychology based on three strategies (manipulative, as- sociative and descriptive) from which emerge different types of studies, three for manipulative strategy (experimental, quasi-experimental and sin- gle-case), three for associative strategy (comparative, predictive and expla- natory) and two for descriptive strategy (observational and selective).