Alternating Treatments Design
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The alternating treatments design (ATD) is a type of single-participant design that is commonly used to determine the effectiveness of two or more treatments. Conditions in the ATD are alternated rapidly and randomly/semirandomly, and effects can by analyzed statistically (e.g., randomization tests) and/or by visual inspection. Using the ATD can be advantageous because treatment effects can be found rather quickly and a withdrawal phase and baseline data are not required.
Keywords:
single-participant design;
alternation treatment design;
baseline data;
randomization test
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