Placebo Effects Make It Difficult to Draw Causal Conclusions Because

question 486

Multiple Choice

Placebo effects make it difficult to draw causal conclusions because we can't tell whether

• A)it is the treatment or participants' expectations that are responsible for the results
• B)it is the treatment or the experimenters' behaviours that are responsible for the results
• C)random sampling or random assignment is the appropriate procedure
• D)it is the independent variable or the dependent variable that is responsible for the results

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