A double-blind experiment is one in which
A) Both the research participants and those interacting directly with the study are aware of the exact nature of the hypotheses being tests and/or to which level of the independent variable a participant has been exposed
B) The research participants are unaware of which level of the independent variable they have been assigned to and/or are unaware of the nature of the researcher's hypothesis
C) Neither the subject nor those interacting directly with the study are aware of the exact nature of the hypotheses being tests and/or to which level of the independent variable a participant has been exposed
D) All participants have been instructed on how to behave during the study

Question

Quizplus · Accepted Answer

In a double-blind experiment, neither the research participants nor those interacting directly with the study are aware of the exact nature of the hypotheses being tested and/or to which level of the independent variable a participant has been exposed. This is done to prevent biases that could arise from participants or experimenters knowing which group they are in or which treatment they are receiving. The double-blind design helps ensure that any observed effects are due to the independent variable being tested and not influenced by biases or expectations.

A Double-Blind Experiment Is One in Which