Developing research hypotheses.

Abstract

The characteristics of useful research hypotheses are identified and discussed. Research hypotheses should (1) express a relationship between two or more variables, (2) have clear implications for testing, and (3) have measurable variables. Since the hypothesis determines study design, the definition of variables and the level of abstraction contained in its relationship affect the use to which study results can be put. Formulating a hypothesis is of value whenever interpretation of the results is the purpose of a study.