Alternatives to the Conners for Child ADHD Assessment: SNAP-IV, SWAN and Vanderbilt
Free, evidence-based, multi-informant rating scales that match the Conners' measurement coverage — with the same digital workflow, at no cost.
Written by Dr Elizabeth Rojas · Last updated July 2026
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If you are searching for an ADHD rating-scale alternative to the Conners, you are probably looking for comparable measurement coverage and convincing evidence for the accurate, standardised assessment of ADHD symptoms, associated emotional and behavioural problems, and their impact on social, academic and family functioning — using a multi-informant approach to gather the “big picture” that guides diagnosis.
The gold standard for diagnosing ADHD is not any single questionnaire. It is a clinician-administered diagnostic interview supported by multi-informant, multi-method rating scales, developmental history and, where indicated, neuropsychological testing (Hall et al., 2016; Musullulu, 2025). Children behave differently with teachers, peers and at home; combining informants performs best of all (AUC ≈ 0.86; Knyazhansky & Shrot, 2025).
NovoPsych's freely available alternatives
These three measures give broad coverage of ADHD symptoms, DSM criteria, common co-occurring problems, and impact across school, home and social settings — supporting screening, assessment and ongoing measurement-based care in children 5–12.
SNAP-IV
Brief 18-item parent/teacher screen for DSM ADHD presentations, ages 5–11. Screens, guides evaluation, and tracks treatment response.
- Maps 1:1 to DSM ADHD criteria
- Best-in-class for symptom tracking — primary outcome in the NIMH MTA trial
- Highest sensitivity (0.83) & specificity (0.97) in Mulraney et al., 2022
SWAN
18-item, dimensional, strengths-based rating of ADHD presentations against typical peers — reducing measurement and cultural bias.
- Symptoms framed on a low-to-high continuum
- Strengths-based rather than deficit-focused
- Research cut-offs for ADHD / non-ADHD groups
Vanderbilt (VADPRS / VADTRS)
43–55 item broad screen for DSM ADHD plus co-occurring ODD, conduct, anxiety/depression and functional impairment, ages 5–12.
- Purpose-built to align with DSM ADHD criteria
- Strong agreement with structured diagnostic interviews
- Covers co-occurring disorders across home & school
The Conners and BASC: what you're comparing against
If you are evaluating the Conners Rating Scales or the BASC, here is what each offers — and where a free, validated NovoPsych battery covers the same clinical ground without the per-report licence.
Conners Rating Scales (Conners 4 & CBRS)
The most widely used commercial ADHD rating scales, ages 6–18 — the Conners 4, the Conners Comprehensive Behavior Rating Scale (CBRS), and a Conners Early Childhood form, with self, parent and teacher versions.
Strengths: comprehensive multi-informant coverage, T-score norms across multiple comparison groups, up to five combined raters, response-validity indices, and coverage through to age 18.
The catch: per-administration and per-report fees plus Pearson Q-Global licensing; single-report use (the most common purchase) is subject to bias and low cross-rater agreement.
BASC-3 and BASC-4
The Behavior Assessment System for Children — a 105–192 item broadband battery spanning ages 2–21. It's a full behaviour assessment system rather than a single ADHD scale.
Strengths: very broad developmental and behavioural coverage; popular in schools and for IEP and learning-disability evaluations; integrates interview, history and observations.
The catch: independent research suggests scores largely reflect one general “behaviour problems” factor, limiting ADHD-specific interpretation; length and per-report cost make it heavy for ADHD-only referrals.
The shared limitation of every rating scale
The most comprehensive synthesis to date — a systematic review and meta-analysis of 75 studies covering 41 instruments — found that no single scale reached both sensitivity ≥ 0.80 and specificity ≥ 0.80 (Mulraney et al., 2022).
Cross-informant agreement averages only r ≈ .28 (Achenbach et al., 1987) — so a tool that makes it easy and affordable to collect parent and teacher data has a structural advantage over one that charges per report.
How NovoPsych delivers the same capability — free
NovoPsych hosts the complete set of assessments discussed here — and 150+ more — with the digital workflow clinicians expect from a paid platform, at no cost:
- Free PDF measures with digital administration & score reports
- Normative & clinical (ADHD) reference scoring for accurate comparison
- Multi-informant coverage: VADPRS + VADTRS + SNAP-IV give a similar informant base to the Conners 4 for ages 5–12 (bar youth self-report)
- Customisable assessment batteries tailored to the referral question
- Symptom monitoring with flagged change over time and auto-generated interpretive text
- Digital administration & auto-reporting — the same workflow as MHS MAC+
- Free: no per-report fee, no licence, no institutional account
Regular and organisation users who want AI-scribe features can add a free trial and tiered plan — including Just Ask NovoNote for combined multi-informant summaries. Explore the NovoNote template library and an ADHD clinical interview template.
How NovoPsych compares to the Conners 4 and BASC-4
| Capability | NovoPsych (free battery) | Conners 4 (MHS MAC+) | BASC-4 (Pearson) |
|---|---|---|---|
| Clinical capability | |||
| Multi-informant (parent, teacher, caregiver) | ✓ | ✓ | ✓ |
| Youth self-report form | ✗ | ✓ (8+) | ✓ |
| DSM-5 symptom alignment | ✓ | ✓ | ~ configured in scoring |
| Subtype / presentation identification | ✓ | ✓ | ✗ |
| Functional impairment documented | ✓ | ✓ | ✓ |
| Co-occurring screen (ODD / CD / anx / dep) | ✓ | ✓ | ✓ |
| Response-validity indices | ✗ | ✓ | ✓ |
| Age range (normed) | 5–12* | 6–18 | 2–25 |
| Norms & interpretation | |||
| Normative reference sample | ✓ | ✓ | ✓ |
| Clinical (ADHD) reference sample | ✓ | ✓ | ✓ |
| Symptom monitoring / change tracking | ✓* | ✓ | ~ flex assessments |
| Platform & administration | |||
| Digital administration | ✓ | ✓ | ✓ |
| Automated digital scoring | ✓ | ✓ | ✓ |
| Interpretive clinical report | ✓ | ✓ | ✓ |
| Item-level response display | ✓ | ✓ | ✓ |
| Multi-rater combined PDF report | ~ (Just Ask NovoNote) | ✓ (≤5) | ✓ |
| Clinical documentation integration | ✓ (+NovoNote) | ✓ | ✓ |
| Licence required | None | Commercial | Commercial |
| Cost per report | Free | Paid | Paid |
Key: ✓ full · ~ with limitations · ✗ absent. *NovoPsych: Vanderbilt comorbidity norms cover 5–12; SNAP-IV and SWAN extend to 5–17/18 for ADHD symptoms without comorbidity coverage.
References
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Alhajji, L., et al. (2025). Diagnostic accuracy of the SWAN rating scale in childhood ADHD.
American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (2014). Standards for educational and psychological testing. American Educational Research Association.
Anderson, N., et al. (2022). Normative data for the Vanderbilt ADHD Diagnostic Rating Scales (n = 1,570).
Baker, J., et al. (2026). SNAP-IV percentile rankings for children and adolescents.
Bussing, R., et al. (2008). Parent and teacher SNAP-IV ratings of attention deficit/hyperactivity disorder symptoms. Assessment, 15(3), 317–328.
Cai, Q., Georgeson, A. R., Basha, S., Lee, S. K., Xu, B., & Gewirtz, A. H. (2025). A trifactor model approach to understand school-aged children's psychosocial adjustment: Integrating father, mother, and teacher perspectives. Child Psychiatry & Human Development, 1–13.
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MHS. (2022). Conners 4 technical manual. Multi-Health Systems.
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