When the experimenter's subtle or unintentional behaviours influence the behaviour of participants in his/her experiment,these are called demand characteristics.

Question

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Demand characteristics refer to cues in an experiment that might inform participants of the purpose of the study, potentially influencing their behavior. The experimenter's influence is more accurately described as experimenter bias or expectancy effects.

When the Experimenter's Subtle or Unintentional Behaviours Influence the Behaviour