Paper 1 · Research Aptitude
UGC NET December 2022 (04.03.2023) Shift-I
The tendency of researchers to subtly and inadvertently affect the behaviours of participants in a study, obscuring the true effect of the independent variable, is called
APlacebo effect
BExperimenter bias effect ✓ Correct
CThe Hawthorne effect
DEvaluation apprehension effect
Correct answer: (B) Experimenter bias effect — The tendency is the experimenter bias effect, so the answer is experimenter bias effect.
Explanation
★The tendency is the experimenter bias effect, so the answer is experimenter bias effect.
★Here the researcher affects the participants without meaning to.
★This subtle influence changes how the participants behave.
★It hides the true effect of the independent variable.
★This unintended influence by the researcher is the experimenter bias effect.
★It is not the placebo, Hawthorne or evaluation apprehension effect.
★So the answer is experimenter bias effect.
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