Which of the following can be present in an experimental study?
A) Random assignment and random selection
B) Random assignment without random selection
C) Random selection without random assignment
D) All of the above

Question

Quizplus · Accepted Answer

All of the above options can be present in an experimental study. Random assignment is used to assign participants to different groups in an experiment, which helps in controlling for confounding variables. Random selection refers to how sample members are selected from the population for inclusion in the study, which helps in ensuring the sample is representative of the population. Both can be used independently or together depending on the study design and objectives.

Which of the Following Can Be Present in an Experimental