Experimenter Expectancy Effects Are

Experimenter expectancy effects are:

A) instances when participants improve because of their expectations rather than the actual treatments they receive.
B) the subtle and unintentional cues that participants pick up about the hypotheses of an experiment.
C) instances when experimenters mistakenly use random selection instead of random assignment.
D) the subtle and unintentional ways that experimenters can influence their participants to respond in ways consistent with their hypotheses.