Treatment-outcome researchers attempt to prevent initial differences between treatment and control groups by using
A) statistical inference.
B) placebo controls.
C) randomization.
D) double blinding.

Question

Quizplus · Accepted Answer

Randomization helps to ensure that participants are assigned to either the treatment or control group in an unbiased way, which reduces the likelihood of confounding variables and initial differences between the two groups. Statistical inference and placebo controls are helpful strategies for analyzing data and minimizing bias, but they do not directly prevent initial differences between groups. Double blinding is a strategy used to reduce bias during data collection and analysis, but it also does not directly prevent initial differences between groups.

Treatment-Outcome Researchers Attempt to Prevent Initial Differences Between Treatment and Control