Intervention Selection From Assessment, Evidence, Preferences, and Contextual Fit
Key Takeaways
- Interventions should be selected from assessment results, relevant evidence, client preferences, and contextual fit.
- Function-based interventions are usually stronger than procedures chosen only by topography or convenience.
- Contextual fit includes implementer skill, resources, setting demands, culture, risk, and sustainability.
- The best exam answer usually integrates evidence and feasibility instead of treating them as separate choices.
Selecting an Intervention Defensibly
A defensible intervention is not chosen because it is familiar, fast, or popular. It is selected because assessment data support the hypothesis, the research base is relevant, the client and stakeholders can accept it, and the setting can implement it with integrity.
Start with assessment. Functional assessment, skill assessment, preference assessment, records review, and direct observation identify the behavior, context, function, strengths, and barriers. The intervention should logically follow from those findings.
Selection Matrix
| Source | What it contributes |
|---|---|
| Functional assessment | Why the behavior may continue |
| Skill assessment | What must be taught or prompted |
| Preference assessment | Potential reinforcers and choices |
| Research evidence | Procedures with support for similar cases |
| Contextual fit | Whether people can implement and maintain it |
Contextual Fit Questions
- Can implementers deliver the procedure at the required times?
- Are materials, staffing, and schedules realistic?
- Does the plan respect language, culture, dignity, and client choice?
- Can the team collect valid data without disrupting services?
- Are risks and unwanted effects monitored?
If two interventions have similar evidence, choose the one with better fit, lower risk, and stronger stakeholder support. If the best-supported procedure cannot be implemented well, adapt the plan or build capacity before relying on it.
A team wants to use response cost because it worked for another student, but assessment shows this student's problem behavior is maintained by escape from tasks. What should the BCBA do?
Which variable is most directly related to contextual fit?
A caregiver says the proposed feeding intervention conflicts with family mealtime values and cannot be done during daily routines. What is the best BCBA response?