Blinding in Experiments

Rosenthal and Fode's Rat Maze Experiment

Blind Administration

Standardizing Interactions

Which of the following best describes the experimenter expectancy effect?

The experimenter expectancy effect can only occur when a researcher intentionally changes the study procedures to favor a desired outcome.

A researcher is testing whether listening to upbeat music increases social extroversion. Sequence the following events to illustrate how the experimenter expectancy effect could manifest in this scenario.

A researcher is conducting a study to determine if a new herbal supplement improves memory performance. Match each of the researcher's specific expectations with the subtle, unintended behavior that would most likely demonstrate the experimenter expectancy effect in this scenario.

In a formal peer review, a psychologist evaluates a study on 'memory and mood' and finds that the experimenter's knowledge of the hypothesis led to unintentional, encouraging nods toward participants in the 'happy mood' condition. The reviewer judges the study's data to be flawed because the methodology failed to account for the ____.