AP PSYCHOLOGY

Detailed explanation-1: -A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over. This makes results of the study less likely to be biased.

Detailed explanation-2: -Computer-generated surveys are double-blind experiments as the participant is completing the survey online and unaware of the researcher’s targeted hypothesis. The researcher is not aware of who is participating in the experiment.

Detailed explanation-3: -Therefore, both research participants and researchers are blind to this information. Double-blind studies help in reducing the biases like the placebo effect, experimenter bias, and experimenter expectancy effect that hinder the results and conclusions of the study.

Detailed explanation-4: -In a single-blind study, only the participants are blinded. In a double-blind study, both participants and experimenters are blinded. In a triple-blind study, the assignment is hidden not only from participants and experimenters, but also from the researchers analyzing the data.

Detailed explanation-5: -A double-blind procedure refers to a procedure in which experimenters and participants are “blind to” (without knowledge of) crucial aspects of a study, including the hypotheses, expectations, or, most important, the assignment of participants to experimental groups.