Imagine That a Group of Researchers Designed a Study to Test

question 70

Multiple Choice

Imagine that a group of researchers designed a study to test the effectiveness of subliminal-message weight-loss tapes.Half the participants receive real tapes,and half receive similar tapes with the subliminal messages removed.The experimenter keeps track of which participant is in which group.All the participants are told that their tapes contain subliminal messages.What type of study is this

• A) anecdotal research 
• B) case study 
• C) double-blind procedure 
• D) single-blind study

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Scope Document

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A measure in statistics that indicates the dispersion or variability of a set of numerical data relative to its mean.

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