ABSTRACT
To a substantial degree the value of a theory is demonstrated by the research it sparks and the extent to which it is confirmed by this research. Research is only possible, however, to the extent that measures of the variables of the theory are developed, that is, to the extent that the constructs are made operational. These twin topics of measurement and research concern us here, although we will not attempt to provide a detailed treatment. However, in later chapters we will be asking questions such as “Does this measure really effectively represent the constructs of the theory?” and “Does this research provide an appropriate test of the theory?” The answers to these questions will draw on some knowledge of both measurement procedures and research design, and the ensuing discussion is intended to provide a basis for understanding these areas.
