Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Research Aptitude Steps of Research Data Analysis
Identify from the list below the threats to internal validity of research.
(A) Interaction of selection and independent variable (X)
(B) Statistical regression
(C) Interaction of pretesting and X
(D) Differential selection of subjects
(E) Experimental mortality
Choose the correct answer from the options given below:
1
(B), (D) and (E) only
2
(A), (B) and (C) only
3
(B), (C) and (D) only
4
(C), (D) and (E) only