Weathington, B. L., Cunningham, C. J. L., & Pittenger, D. J. (2010). Creating and using assessments, surveys, and objective measures. In Research methods for the behavioral and social sciences (pp. 265-284). Wiley.
Read Chapter 9, pgs 265-284. These pages review the role of variables and hypotheses in research.
Research Methods for the Behavioral and Social Sciences by