A series of observations before treatment allows a researcher to determine whether ____.
A) the treatment has a temporary effect
B) the treatment has a permanent effect
C) scores are influenced by assignment bias
D) scores are influenced by some factors unrelated to the treatment

Question

Quizplus · Accepted Answer

A series of observations before treatment allows a researcher to determine whether scores are influenced by some factors unrelated to the treatment. This is important because if there are other factors affecting the outcome, it becomes difficult to determine whether the treatment is actually effective or not. It is also possible that these pre-treatment observations may reveal underlying trends or patterns in the data that can inform the researcher's analysis and interpretation of the results. However, these observations alone do not allow the researcher to discern whether the treatment has a temporary or permanent effect, nor do they address assignment bias.

A Series of Observations Before Treatment Allows a Researcher to Determine