Random assignment differs from random selection because:
A) random assignment deals with how participants for a study are chosen to begin with, whereas random selection deals with how participants in a sample are assigned to levels of the independent variable.
B) random assignment deals with how participants in a sample are assigned to levels of the independent variable, whereas random selection deals with how participants for a study are chosen to begin with.
C) random assignment is rarely achieved, but random selection is almost always achieved.
D) random assignment must be performed by the experimenter who is carrying out the study, but random selection can be carried out at the analysis stage.

Question

Quizplus · Accepted Answer

Random assignment is the process of assigning participants in a research study to different groups or conditions in a random manner, which helps to control for extraneous variables. On the other hand, random selection refers to the process of randomly choosing participants from a larger population to be part of the study sample. Therefore, random assignment deals with the assignment of already selected participants to different groups, while random selection deals with the initial sampling of participants.

Random Assignment Differs from Random Selection Because