An internal validity threat in which the researcher's expectations concerning the outcome of an experiment actually contribute to producing certain outcomes is known as the ____ effect.
A) Hawthorne
B) John Henry
C) Diffusion
D) Pygmalion
E) Experimenter effect

Question

Quizplus · Accepted Answer

The experimenter effect refers to the influence that a researcher's expectations can have on the outcome of an experiment, potentially leading to biased results.

An Internal Validity Threat in Which the Researcher's Expectations Concerning