__________ is an experiment in which neither the participants nor the individuals running the experiment know if participants are in the experimental or the control group until after the results are tallied.
A) The double-blind study
B) Field research
C) The single-blind study
D) Correlational research

Question

Quizplus · Accepted Answer

A double-blind study is designed to reduce bias and increase the reliability of results by keeping both the participants and the experimenters unaware of which group each participant is assigned to. This helps to minimize the potential for experimenter bias or participant expectancy effects on the outcome of the study. Only after data have been collected and analyzed is the blind broken to determine which group each participant was assigned to.

__________ Is an Experiment in Which Neither the Participants nor the Individuals