Teaching Rajasthan Librarian Grade-II 2024 Mock Test Library Science Research Methodology Research Methods & Design
When discussing experimental design, Campbell & Stanley (1963) introduced symbols that are commonly used:
(A). U
(B). R
(C). X
(D). O
1
A, B and C
2
B, C and D
3
A, C and D
4
A, B and D
5
Question Not Attempted