The statistical question to pursue when you use the ABA single-subject research design is whether the treatment data are better than the data during the two baseline periods.

Question

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The ABA single-subject research design involves comparing the subject's behavior during a baseline period (A), a treatment period (B), and then a return to baseline (A). The statistical question focuses on whether the treatment (B) leads to improved outcomes compared to the baseline periods (A).

The Statistical Question to Pursue When You Use the ABA