PSC-17 Scoring · Pediatric Symptom Checklist-17

The PSC-17 is a 17-item parent-report screener for psychosocial and behavioural problems in children, with three subscales covering internalizing, attention, and externalizing concerns.

About the PSC-17

The Pediatric Symptom Checklist-17 was derived by William Gardner and colleagues from the original 35-item Pediatric Symptom Checklist developed by Michael Jellinek and Michael Murphy ^[1]. Working from large primary-care research networks, Gardner's team reduced the checklist to 17 items that load onto three subscales while keeping the screen's ability to flag children who need a closer look.

It is completed by a parent or caregiver about a child or adolescent. Validation studies have covered children from age 2 or 3 through 17 ^{[2] [3]}, and a youth self-report form (PSC-17-Y) extends it to adolescents who can report on their own behaviour.

Because it is brief and offered as a free download by Massachusetts General Hospital, the PSC-17 is a common first-line psychosocial screen in paediatrics, primary care, and school-based clinics.

What does the PSC-17 measure?

The PSC-17 screens broad psychosocial functioning across three domains:

• Internalizing (5 items) — depressive and anxious symptoms such as sadness, worry, and low self-worth.
• Attention (5 items) — distractibility, restlessness, and difficulty sustaining focus.
• Externalizing (7 items) — oppositional and conduct-type behaviours such as fighting and not listening to rules.

It is a broad-band screener, not a measure of any single condition, and the subscales point toward the kind of follow-up assessment that may be useful.

How do you give the PSC-17?

The PSC-17 takes about 5 minutes for a caregiver to complete and can be administered by non-clinical staff, but a licensed clinician interprets it alongside history, development, and functional context. Where an adolescent can self-report, the PSC-17-Y can be collected in parallel and the two perspectives compared rather than averaged.

How do you score and interpret the PSC-17?

How to score the PSC-17

Each item is rated 0 (Never), 1 (Sometimes), or 2 (Often). Sum all 17 items for a total score ranging 0–34, and sum the items within each subscale for three subscale scores.

Higher scores indicate a greater likelihood of psychosocial impairment. The scorer at the top of this page places a total against the positive-screen threshold.

PSC-17 cut-points

The scorer covers the total (0–34, positive at ≥15). The subscales have their own cut-points ^[1]:

• Internalizing (5 items, 0–10): positive at ≥5.
• Attention (5 items, 0–10): positive at ≥7.
• Externalizing (7 items, 0–14): positive at ≥7.

A child may screen positive on one subscale while the total stays below 15, so review all three subscales, not the total alone. In a clinic sample of youth with epilepsy, about one in five met the total cut-off, and another 20% had at least one elevated subscale with a total in the non-clinical range ^[2].

Optimal thresholds vary by population, so apply the cut-points with clinical judgement. A positive screen supports referral for a full evaluation; it is a screening result, not a clinical conclusion.

Psychometric properties

The three-factor structure (Internalizing, Attention, Externalizing) has held up in several samples:

• Youth with epilepsy (187 caregivers, ages 2–17): acceptable fit for the three-factor model, with scale reliabilities of 0.72–0.85 ^[2].
• Australian community sample (2,097 parents, ages 3–17): the three-factor model was supported, internal consistency was strong (total α 0.87–0.88), and test-retest reliability was acceptable for school-age children ^[3].

In the Australian sample, total and subscale scores correlated strongly with the Child Behaviour Checklist. Classification accuracy was excellent for preschool children but weaker in older age ranges ^[3].

Limitations

• Screening, not a clinical conclusion. A positive PSC-17 indicates psychosocial concerns that warrant full evaluation.
• Population-dependent cut-points. Accuracy varies by age, and subscales can flag concerns the total misses ^{[2] [3]}.
• Informant perspective. Parent-report and youth self-report can diverge; collect both when feasible.

For ADHD-specific follow-up, pair with the SNAP-IV or NICHQ Vanderbilt; for youth anxiety, consider the SCARED; for depression, the PHQ-A.

Billing the PSC-17 (CPT 96127)

PSC-17 administration qualifies for reimbursement under CPT code 96127 (brief emotional/behavioural assessment) when it is scored and documented with clinical interpretation. Medicare's Medically Unlikely Edit caps 96127 at 4 units per date of service; commercial payer limits vary, so confirm your contract.