Answered: nd randomly assigns half to take the…

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section: Chapter Questions

Problem 2T: A hospital cafeteria offers a fixed-price lunch consisting of a main course, a dessert and a drink....

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A scientist is skeptical of a new pill that claims to “improve memory and concentration.” He finds 230 people and randomly assigns half to take the new pill and the other half to take a placebo pill that looks, smells, & tastes like the real thing. All the participants took learning & memory tests before the study and again, 6 weeks later. The scientist hired graduate students to administer & score the tests in his place.

Select all of the words that describe this study.(ONLY NAME NO DESCRIOPTION )

Controlled

Blind

Placebo

Observational

Experiment

Stratified

Double-Blind

Randomized

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