A survey drawn from social-science research which deals with correlational, ex post facto, true experimental, and quasi-experimental designs and makes methodological recommendations. Bibliogs
Regression toward the mean is a complex statistical principle that plays a crucial role in any research involving the measurement of change. This primer is designed to help researchers more fully unde
Regression toward the mean is a complex statistical principle that plays a crucial role in any research involving the measurement of change. This primer is designed to help researchers more fully unde
Thirty-five years ago, the four authors of this book addressed the problems of validity in social science research. They were interested in new and unused methods for obtaining information. The ori
