PREMIUM
πŸ“š FPSC SST 2026 Preparation Group
Join Our WhatsApp Group for SST Past Papers & Mock Tests
βœ… Daily MCQs β€’ πŸ’‘ Expert Tips β€’ πŸ“š Past Paper Discussion
Join Group β†’

A researcher randomly assigns students to two teaching methods. Random assignment primarily helps to:

A. Guarantee generalizability
B. Reduce pre-existing group differences
C. Eliminate all measurement errors
D. Increase the population size
Correct Answer: B. Reduce pre-existing group differences

Random assignment balances known and unknown confounders across groups, reducing selection bias.

Leave a Comment

Your email address will not be published. Required fields are marked *

Join Our WhatsApp Channel ×
Scroll to Top