Behavioral Research. Chapter Four Studying Behavior. Introduction. Examine the basic issues and concepts necessary for understanding behavioral research. Look at the nature of variables, including measurement, types of relationships, and general methods for studying these relationships. .
Four General Categories of Variables
operationally definition defines a concept by specifying precisely how the concept is measured or manipulated in a particular study.
Four most common relationships found in research are:
Experimental Control-with experimental control all extraneous variables are kept constant, and therefore cannot be responsible for the results of the experiment.
Randomization- The experimental method ensures that extraneous variables, in which control would be difficult, are equalized through random assignment.