Question

_________are the most common way to operationally define variables in psychological research.

A) Dependent and independent variables
B) Null and alternative hypotheses
C) Qualitative and quantitative data
D) Experimental and control groups

Answer 1

The most common way to operationally define variables in psychological research is by using dependent and independent variables. The independent variable is manipulated or controlled by the experimenter, while the dependent variable is what the researcher measures to see how much effect the independent variable had.

Step-by-step explanation:

The most common way to operationally define variables in psychological research is by using dependent and independent variables. In an experiment, the independent variable is manipulated or controlled by the experimenter, while the dependent variable is what the researcher measures to see how much effect the independent variable had. For example, in a study on the influence of temperature on coat color in rabbits, the temperature would be the independent variable and the coat color would be the dependent variable.