The systematic variation of some factor believed to affect behaviour is an essential characteristic of which of the following methods?

Question

Quizplus · Accepted Answer

The systematic variation of some factor (independent variable) believed to affect behavior is a key characteristic of the experimental method. In an experiment, researchers manipulate the independent variable and measure changes in the dependent variable to determine cause-and-effect relationships. The other methods (case study, survey method, and correlational method) do not involve the systematic manipulation of an independent variable.

The Systematic Variation of Some Factor Believed to Affect Behaviour