A condition where the independent variable is not present and data obtained during this period serve as the basis for comparison is called?

• A. Baseline Logic
• B. Behavior
• C. Behavior Checklist
• D. Baseline

Answer: (D)

Baseline is the term for the condition in which no intervention is applied, and data collected during this period serve as the reference point for comparison with later phases. This setup lets you see what the behavior looks like without the influence of the independent variable, so you can assess whether changes happen when the intervention is introduced. A stable baseline provides a clear benchmark to attribute any subsequent changes to the IV rather than to random variation or external factors.

Baseline Logic refers to the reasoning used to compare data across conditions to infer a functional relation, not the name of the condition itself. Behavior is the response being measured, not the phase of the experiment. A Behavior Checklist is a tool for recording occurrences or ratings of behaviors, not a phase description.