Which of the following are primary methods of sampling in psychological research?
A. Random Sampling
B. Systematic Sampling
C. Snowball Sampling
D. Cluster Sampling
E. Quota Sampling
Choose the correct answer from the options given below:
1
A, B, and D only
2
A, B, D, and E only
3
A, C, and E only
4
A, B, C, D, and E