The most basic single-subject design illustrating how specific features of the environment regulate behavior?

The most basic single-subject design illustrating how specific features of the environment regulate behavior?

• A. A-B-A-B Reversal Design
• B. Baseline
• C. Contingency of Reinforcement
• D. Three-Term Contingency

Answer: (A)

In single-subject work, showing that changing the environment changes behavior is a fundamental goal. The most straightforward way to demonstrate this is to use a reversal design that alternates between a baseline period (no environmental change) and an intervention period (the environmental feature is applied), then returns to baseline and reintroduces the intervention. This back-and-forth makes it clear that the behavior shifts in response to the environmental manipulation and then shifts back when the manipulation is removed, with the effect reappearing when the manipulation is reapplied. That replication across phases provides strong evidence that the environment is regulating the behavior. Baseline is just the initial measurement phase, not a design by itself. Contingency of reinforcement is a principle about how consequences shape behavior, not a specific single-subject design. Three-term contingency describes the relation among an antecedent, the behavior, and the consequence, which is a conceptual rule rather than a design.

In single-subject work, showing that changing the environment changes behavior is a fundamental goal. The most straightforward way to demonstrate this is to use a reversal design that alternates between a baseline period (no environmental change) and an intervention period (the environmental feature is applied), then returns to baseline and reintroduces the intervention. This back-and-forth makes it clear that the behavior shifts in response to the environmental manipulation and then shifts back when the manipulation is removed, with the effect reappearing when the manipulation is reapplied. That replication across phases provides strong evidence that the environment is regulating the behavior.

Baseline is just the initial measurement phase, not a design by itself. Contingency of reinforcement is a principle about how consequences shape behavior, not a specific single-subject design. Three-term contingency describes the relation among an antecedent, the behavior, and the consequence, which is a conceptual rule rather than a design.