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OpenStudy (anonymous):
when a study is designed so that neither the subjects nor the experimenters know which subjects are in the treatment group and which ones are in the control group, the study is called a ___________ experiment.
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OpenStudy (anonymous):
@pgpilot326
OpenStudy (anonymous):
@mathstudent55
OpenStudy (anonymous):
@ybarrap
OpenStudy (ybarrap):
double-blind
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