Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Library Science Research Methodology Research Methods & Design
Which of the following are formal experimental designs?
A. Randomized block design
B. Latin square design
C. Before and after without control design
D. Factorial design
Choose the correct answer from the options given below
1
A, C and D only
2
A, B and D only
3
B, C and D only
4
A, B and C only