Which technique provides useful information when there are small changes from one treatment condition to another, when simulations are used or when a placebo is used?
A) Random selection
B) Random assignment
C) No-treatment controls
D) Manipulation checks

Question

Quizplus · Accepted Answer

Manipulation checks are used to ensure that the experimental manipulation has worked as intended. This provides useful information when there are small changes from one treatment condition to another, when simulations are used or when a placebo is used. Therefore, D is the best choice.

Which Technique Provides Useful Information When There Are Small Changes