Regarding Their Research on Weight Loss, Conlon and His Colleagues

Multiple Choice

Regarding their research on weight loss, Conlon and his colleagues weighed the participants on a standard digital scale at the beginning of the weight-loss period and once every week until the program ended. This exact procedure being used to represent the participants' weights is referred to as a(n)

A) operational definition.
B) tentative theory.
C) null hypothesis.
D) contingent reinforcer.