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withdrawal design

an experimental design in which the treatment or other intervention is removed during one or more periods. A typical withdrawal design consists of three phases: an initial condition for obtaining a baseline, a condition in which the treatment is applied, and another baseline condition in which the treatment has been withdrawn. Often, the baseline condition is represented by the letter A and the treatment condition by the letter B, such that this type of withdrawal design is known as an A-B-A design. A fourth phase of reapplying the intervention may be added, as well as a fifth phase of removing the intervention, to determine whether the effect of the intervention can be reproduced.

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Psychology term of the day

June 19th 2024

cautious shift

cautious shift

a choice shift in which an individual making a decision as part of a group adopts a more cautious approach than the same individual would have adopted had he or she made the decision alone. Studies suggest that such shifts are (a) rarer than the opposite risky shift and (b) most likely to occur when the majority of the members of the group, prior to discussion, favor a cautious rather than a risky choice. See also group polarization.