ADHD
Swanson, Nolan and Pelham questionnaire (SNAP-IV)
Swanson, Nolan and Pelham questionnaire (SNAP-IV) — administration and scoring reference.
Reference information · Official-form reference
- Last content update
- 2026-10-26
- Clinical review
- Not independently reviewed
- Source jurisdiction
- See individual sources
- Coverage
- Official-form reference
| Field | Instrument context |
|---|---|
| Version | SNAP-IV; specify 26-item or other exact form and observer |
| Population | Children/adolescents; verify age range for selected form |
| Respondent | Parent or teacher |
| Purpose | Swanson, Nolan and Pelham questionnaire (SNAP-IV) — administration and scoring reference. |
Administration
Use the selected parent or teacher form and its stated symptom interval. Record functional impact and cross-setting examples separately.
Scoring method
Item ratings aggregated by defined domains; choose item-count edition and respondent.
Interpretation & limitations
- Report the form-specific inattention, hyperactivity/impulsivity and, when included, oppositional dimensions.
- Interpret the findings alongside the clinical interview, functioning, history and relevant physical assessment.
- The 26-item and longer SNAP editions have different item coverage. Do not apply one observer’s norms to another observer’s response set.
- Use the original instrument and manual for item wording, rating anchors, missing-data rules and any normative conversions. This reference does not establish a diagnosis or select treatment.