Besides random assignment,what other component is necessary for a study to be considered an experiment?
A)The presence of dependent variables
B)Manipulation of an independent variable
C)Random selection of participants
D)Cause-and-effect relationships

Question

Quizplus · Accepted Answer

Manipulation of an independent variable is necessary for a study to be considered an experiment. This involves changing or controlling an aspect of the environment or treatment to see its effect on the dependent variable. Random assignment refers to the process of randomly assigning participants to different groups in the study, but it alone does not make it an experiment. Random selection is a separate process used to select a representative sample from a larger population. Cause-and-effect relationships are also a key component of experiments, but they are a result of the manipulation of the independent variable and the measurement of its effect on the dependent variable.

Besides Random Assignment,what Other Component Is Necessary for a Study