________of participants is done to obtain a representative sample, and ____________of the participants is done to improve the experimental design of the study.
A) Random selection; random assignment
B) Random selection; random sampling
C) Random assignment; random selection
D) Random assignment; matching

Question

Quizplus · Accepted Answer

Random selection is used to obtain a representative sample of the population, ensuring that every individual has an equal chance of being chosen. Random assignment is then used to allocate these selected participants into different groups in an experiment, such as control and experimental groups, to reduce bias and improve the validity of the experimental design.

________Of Participants Is Done to Obtain a Representative Sample, and ____________Of

Of Participants Is Done to Obtain a Representative Sample, and ____Of