Multi-Health Systems (MHS) · Since 2014
Conners Continuous Performance Test, 3rd Edition (CPT-3)
In-clinic only Ages 8+
Task paradigm
Letter-based go/no-go (respond to all letters except X)
Test duration: ~14 minutes
Score outputs
- Detectability (d')
- Omissions
- Commissions
- Hit reaction time
- HRT standard deviation
- Variability
- Perseverations
- HRT block change
- HRT inter-stimulus interval change
Normative sample
~2,000 — Census-stratified normative sample; Conners K-CPT 2 covers ages 4–7 separately
Notable features
- Modern normative sample (2014, US census-stratified)
- Strong publisher support and integration with other Conners scales
- Validity scales for non-credible responding
Limitations and considerations
- In-clinic only
- MHS qualification level required for purchase (B-level for clinicians)
- Letter-based stimulus may favor English-readers
Regulatory & pricing
- FDA 510(k) cleared
- No — Marketed as a psychological assessment instrument under MHS qualification levels.
- Public pricing
- No — Per-administration cost via MHS scoring platform; institutional pricing varies.