Research Methodology · Research Aptitude
Some of the threats to internal validity in research are: A. Quasi-experimental design B. Pre-Testing C. Attrition D. History E. Maturation Choose the correct answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A, B and C only
- 2B, C and D only
- 3B, D and E only
- 4C, D and E only✓
Correct answer
C, D and E only
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