Rev. and updated ed. of : Experimental methodology.

Includes bibliographical references (p. 511-523) and index.

Introduction to scientific research -- Research approaches and methods of data collection -- Problem identification and hypothesis formation -- Ethics -- Measuring variables and sampling -- Research validity -- Control techniques in experimental research -- Experimental research design -- Procedure for conducting an experiment -- Quasi-experimental designs -- Single-case research designs -- Survey research -- Qualitative and mixed methods research -- Descriptive statistics -- Inferential statistics -- Preparing the research report for presentation or publication.