Which of the following is NOT a source of confounding variables?
A) random assignment
B) selection bias
C) placebo
D) experimenter bias

Question

Quizplus · Accepted Answer

Random assignment is actually a technique used to reduce the influence of confounding variables by randomly assigning participants to different groups in order to balance out potential confounding factors. Selection bias, placebo effects, and experimenter bias are all sources of confounding variables that can affect the outcome of an experiment.

Which of the Following Is NOT a Source of Confounding