Why is it sometimes important for an experiment to use a blind observer?
A)To minimize the effect of experimenter bias
B)To avoid the need for informed consent
C)To combine the results of the experiment with a correlational study
D)To minimize the effect of an independent variable

Question

Why is it sometimes important for an experiment to use a blind observer?​
A)To minimize the effect of experimenter bias
B)​To avoid the need for informed consent
C)​To combine the results of the experiment with a correlational study
D)​To minimize the effect of an independent variable

Quizplus · Accepted Answer

It is important to use a blind observer in experiments to minimize the effect of experimenter bias. Experimenter bias occurs when the experimenter's expectations and beliefs about the outcome of the experiment influence the results. By using a blind observer, the observer is unaware of the experimental conditions and, thus, cannot be influenced by these biases. This helps to increase the validity and reliability of the results.

Why Is It Sometimes Important for an Experiment to Use