Mathematics
Mathematics, 22.11.2019 20:31, fatiyam2

An experimenter is interested in the effect of expectations and drugs on alertness. each participant is given an amphetamine (stimulant) or a placebo (an inert substance). in addition, half in each group are told that the drug taken was a stimulant and half that the drug was a depressant. an alertness score for each participant is obtained from a composite of measures that include a questionnaire and observation.

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An experimenter is interested in the effect of expectations and drugs on alertness. each participant...

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