If a researcher is blind to an experimental hypothesis when they conduct some experimental research this mainly controls for which of the following?
A)Mortality effects.
B)Regression to the mean.
C)Practice effects.
D)Demand characteristics.
E)Experimenter bias.

Question

Quizplus · Accepted Answer

When a researcher is blind to an experimental hypothesis, they cannot intentionally or unintentionally influence the participants in any way, thus controlling for experimenter bias. Experimenter bias occurs when a researcher's expectations or beliefs about the experiment influence the results in unintended or unconscious ways.

If a Researcher Is Blind to an Experimental Hypothesis When