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The first of the great writers of tragedy whose plays survived was Aeschylus.
Placebo Group
In drug research, a group given an inert substance to assess the psychological effect of receiving a treatment.
Experimenter Expectancy Effect
The influence that the researcher's expectations can have on the outcome of a study, potentially biasing the results.
Floor Effect
Failure of a measure to detect a difference because it was too difficult.
Paper-and-pencil Questionnaire
A traditional survey method where participants respond to questions written on paper by physically marking their answers.