The purposes of this book include the following: (1) to help students in acquiring knowledge and skills needed to design and conduct experimental research, (2) to acquaint potential researchers with the various methods and instruments that are available, and (3) to suggest new areas of research. These purposes are discussed in the three parts of the book. In Part One, Research Design and Setting, Chapter 1 is concerned with the basic design considerations and common requirements for any experimental study, with concepts and principles related to the bivariate methods often used in communication research. Chapter 2 introduces multivariate research design; identifies its fundamental characteristics; and shows its application to the study of communication. Chapters 3 and 4 are concerned with two research settings: the laboratory and the field. The chapters in Part Two, Research Methods and Instruments, describe a number of methodologies for communication research, with emphasis given to those that can be used to develop measuring instruments for use in communication research. Part Three, Research Technologies, includes chapters on the techniques of psychophysiological measurement, the place of computers in communication research, and methods of information storage and retrieval. (Author/DB)