Research results can be influenced if a researcher unconsciously behaves differently toward subjects in the various groups based on his or her preconceived notions. This is called
A) experimenter bias.
B) demand characteristics.
C) selection bias.
D) the placebo effect.

Question

Quizplus · Accepted Answer

Experimenter bias occurs when the researcher's beliefs or expectations about the outcome of the study affect how they interact with subjects, leading to unintentional differences in treatment or behavior between groups. This can lead to inaccurate or skewed research results.

Research Results Can Be Influenced If a Researcher Unconsciously Behaves