Explain What a Double-Blind Design Is and Identify One Confound

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The Answer is A double blind design is when neither the participant nor the experimenter knows the conditions to which the participant is assigned. One obstacle in research that this helps overcome is the placebo effect because participants do not know if they are placed in the control group or experimental group. Another barrier that this can overcome is the Hawthorne effect as illustrated in the example provided in Rapport, Orban, Kofler, and Friedman (2013). In this example, researchers who did not know the conditions (blinded) reported substantially lower scores than unblinded raters did.

Explain What a Double-Blind Design Is and Identify One Confound

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Explain What a Double-Blind Design Is and Identify One Confound

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