Multiple Baseline Design
A research methodology that introduces interventions sequentially across different behaviors, participants, or settings.
Full Definition
Multiple baseline design is a single-case experimental approach used extensively in behavioral medicine research. The design involves collecting baseline data across multiple behaviors, participants, or settings, then systematically introducing the intervention at different time points for each baseline. This staggered implementation allows researchers to demonstrate experimental control and causal relationships without requiring withdrawal of effective treatments. The design is particularly valuable in clinical settings where reversal designs would be unethical or impractical.
Usage
Usage note: Specify whether design is across behaviors, participants, or settings.
In Context
- "The multiple baseline design across participants demonstrated clear treatment effects." — Behavioral intervention study
- "Multiple baseline design was chosen to avoid ethical concerns about treatment withdrawal." — Research methodology section