Reducing Researcher Bias in Experimental Studies
In an experimental study investigating the effect of sleep on academic performance, which of the following methodological adjustments would best mitigate potential researcher bias?
A
Implement double-blind procedures where both subjects and researchers are unaware of group assignments.
B
Select subjects who have previously participated in similar experiments for familiarity with procedures.
C
Have researchers conduct all assessments personally to ensure consistency.
D
Use open-label designs so all parties are informed about who is receiving which treatment.
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