The purpose of this dissertation is to better understand scientific training within clinical and counseling psychology doctoral programs. A primary goal is to extend previous research by expanding the scientific training outcome variables from research interest and productivity to include additional characteristics of scientific mindedness such as…

Thirty fourth-grade students participated in an extended intervention previously successful in fostering skills of scientific investigation and inference, notably control of variables (COV). The intervention was similarly successful for a majority of students in the present study, enabling them to isolate the three causal and two noncausal…

Internal validity is described as a matter of how well a particular instance of data collection or generation can be described and explained. It is a property of the procedures used in the collection or generation of data. The notion of internal validity is examined in order to establish a method of quantitatively estimating it. A coefficient of…