Select a subject and use a full-text database such as PsycArticles to locate an empirical journal article that reports the results of a research study examining your subject. Specifically, find an article in which the researchers obtained a sample of participants and then used some form of measurement.

Once you have found your article, answer each of the following questions.

a. What was measured and how was it measured? (If multiple variables were measured, select one.)

b. Was the variable measured directly (like height or weight), or did the research use an operational definition to measure a hypothetical construct such as motivation?

c. If an operational definition was used, what was the operational definition?

d. What scale of measurement was used (nominal, ordinal, interval, or ratio)?

e. Did the researchers use a physiological, a behavioral, or a self-report measure?