AP PSYCHOLOGY

Detailed explanation-1: -2. Choose a study in which participants do not know if they are part of the control group or the experimental group. Only the experimenter knows who is in each group in this study, so it is a single-blind study.

Detailed explanation-2: -Double Blind Design: In a double blind design, both the participants and the experimenters are kept in the dark about the condition assignment. That is, participants do not know whether they are in a treatment condition or a control condition, and experimenters do not know which participants are in each condition.

Detailed explanation-3: -In a single-blind study, the researcher will know whether a particular subject is in the control group, but the subject will not know. In a double-blind study, neither the subject nor the researcher will know which treatment the subject is receiving.

Detailed explanation-4: -Listen to pronunciation. (DUH-bul-blind STUH-dee) 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-5: -By asking people to pay attention to and record their feelings and perceptions of an event, Wilhelm Wundt was using to analyze the basic elements of the mind. An experiment in which the true purpose is hidden from the researcher as well as from the participant is called a: a) blind experiment.