CORE-10 questionnaire: Free PDF template for therapists

Key Takeaways

The CORE-10 is the CORE System Trust’s 10-item short form of the 34-item CORE-OM, with each item scored 0 to 4 based on the last week.

It has three domains, not four: six problems and symptoms items, three functioning items, and one risk item. There’s no separate wellbeing domain.

Items 2 and 3 reverse-score before you total anything, and the single risk item is item 6, the ‘I made plans to end my life’ item, not item 10.

The Clinical Score is the raw sum of all 10 items (0-40). A score of 11 or above marks clinically significant distress, and pro-rating only works when exactly one item is missing.

A CORE-10 score of 18 sits in the moderate band. Drop to 8, and it falls below the clinical cut-off entirely. Getting from a stack of ticked boxes to that kind of judgement call takes two things many first-time users get wrong. One is reverse-scoring two of the ten items. The other is knowing which question matters most for safety: item 6, not item 10.

That mix-up isn’t cosmetic. Get it wrong, and a client who’s coping well can look distressed on paper. Or a genuine risk disclosure gets logged as an ordinary symptom question. Here’s how to score it properly and read the result on the scale it was actually built for.

What is the CORE-10 questionnaire?

The CORE-10 is a 10-item self-report questionnaire built by the CORE System Trust (Barkham et al.). It’s the short form of the same UK research group’s 34-item CORE-OM (Clinical Outcomes in Routine Evaluation – Outcome Measure).

Connell and Barkham published the validation study in 2007. It’s now one of the most widely used routine outcome measures in UK mental health and counselling services.

Clients rate each item on how true it’s felt over the last week, from 0 (“not at all”) to 4 (“most or all the time”). Ten items take most people one to two minutes to complete. That’s the whole point: it’s short enough to hand out every session without it becoming a burden.

It’s a screening and monitoring tool, not a diagnostic one. A high score tells you distress is present and roughly how severe it is. It doesn’t tell you why, and it doesn’t replace a clinical interview.

What the CORE-10 actually measures, and where item 6 fits

The CORE-10 covers three domains, not four. When the CORE System Trust cut the CORE-OM down from 34 items to 10, the wellbeing domain didn’t survive. Its items correlated too closely with the problems and symptoms items to earn a separate category, so the short form dropped it and kept the other three.

• Problems and symptoms (6 items): anxiety, depression, physical symptoms of distress, and trauma-related thoughts.
• Functioning (3 items): how distress is affecting daily life, work, and relationships.
• Risk to self (1 item): item 6, “I made plans to end my life.”

That last point is worth sitting with, because it’s the detail that gets miscopied most often. Item 6 is the risk item. Number 10 asks about unwanted images or memories, a trauma-symptom question, not a risk one.

Score item 10 as if it were the safety item, and you can end up underestimating an actual risk disclosure sitting three rows above it. Or you might read a trauma symptom as a safety flag when it isn’t one. Either way, check item 6 specifically every time you review a form, regardless of the total score.

Who should be using the CORE-10 in practice

The CORE-10 is validated for adults. It’s widely used across NHS Talking Therapies (formerly IAPT) services, private counselling and psychotherapy practices, and primary care mental health teams in the UK.

General counselling and primary care settings are where it’s most prominent, since PHQ-9 and GAD-7 remain the formal default measures in the Talking Therapies minimum dataset. If you’re already tracking outcomes session by session, it’s built for exactly that use case.

For younger clients, the CORE System Trust publishes a separate instrument, the YP-CORE, adapted in wording and reading level for ages roughly 11 to 16. Don’t administer the adult CORE-10 to that age group and adjust the interpretation afterward. Use the instrument that was actually validated for the population in front of you.

For non-clinical or general population screening, the CORE System Trust also publishes GP-CORE. It’s a 14-item version without a risk item, intended for primary care settings rather than mental health services specifically.

How to score the CORE-10 without the common mistakes

Scoring takes three steps, and skipping the first one is where most errors happen.

1. Reverse-score items 2 and 3. These two items are worded positively (“I have felt able to cope when things go wrong”), so a high tick means low distress. Before you add anything up, subtract each of these two raw scores from 4. A ticked “1” becomes a 3; a ticked “4” becomes a 0.
2. Check for missing items. If exactly one item is left blank, you can pro-rate: sum the nine completed items, divide by 9, then multiply by 10. With two or more items missing, don’t score the form at all. Ask the client to complete it, or note it as invalid.
3. Add up all 10 scores. The Clinical Score is a raw sum, not an average forced back onto a 0-4 scale. It runs from 0 to 40. If you prefer working in a mean, CORE System Trust guidance frames it as (sum ÷ items completed) × 10. That lands on the same 0-40 scale, just expressed differently.

Worked example. A client completes all 10 items. After reversing items 2 and 3, the ten scores are 3, 2, 1, 2, 3, 0, 2, 2, 2, 1. Add them up and you get 18. That’s a raw Clinical Score of 18, sitting inside the 15-20 “moderate” band. It isn’t a 1.8 forced onto a 0-4 scale and misread as “mild.” The decimal-point version of that score would put you a full severity band too low. That’s exactly the kind of error the raw 0-40 scale is designed to prevent.

Before you score, run this checklist

Confirm these five things before you finalize any score:

• Have items 2 and 3 actually been reversed, not just added as ticked?
• Is item 6 checked separately for a risk flag, regardless of the total?
• Are there zero or exactly one missing items? Two or more means don’t score it.
• Is the total reported as a raw sum out of 40, not a mean out of 4?
• Does the score get logged against the same client record as the last administration, so you can compare trend, not just a single point?

CORE-10 cut-off scores and severity bands on the 0-40 scale

The clinical cut-off on the CORE-10 is 11. A raw score of 11 or above indicates clinically significant distress. That’s the same threshold logic used across the CORE suite, described in Connell and Barkham’s 2007 validation work and the CORE System Trust’s own guidance.

Everything below that splits into a non-clinical range; everything above it splits further by severity.

Back to the worked example: a raw score of 18 sits inside the moderate band, above the clinical cut-off but well short of severe. That single number, read on the wrong scale, could have been misread as mild. On the right scale, it’s a result worth a treatment review, not a footnote.

CORE-10 vs CORE-OM: how the two forms actually differ

The CORE-10 is a short form, not a replacement, of the full CORE-OM. Reach for the short form when you need a quick, repeatable check-in. Turn to the full measure when you need the detail a comprehensive intake or a research protocol calls for.

The CORE System Trust’s own recommended workflow pairs the two. At intake and discharge, the full CORE-OM captures the complete picture. Between those points, the CORE-10 tracks the trend at every session, without asking clients to fill out 34 items each week.

What you can and can’t do with the CORE-10 template

The CORE-10 is free to use for clinical service delivery. It’s copyright protected by the CORE System Trust, so you can reproduce it for your own practice without asking permission first. You can’t edit the items or publish a derivative version, though. Using it in a research study needs separate authorization from the Trust.

One thing to flag if you’re using the printable CORE-10 template or any paper copy: the checkboxes follow the same 0-to-4 order for every item. There’s no visual cue that items 2 and 3 need reversing.

That’s normal; most CORE-10 paper forms work this way. It just means the reversal has to happen at scoring time, on paper or in a spreadsheet, not on the form itself. Build it into your process rather than expecting the sheet to remind you.

For the official source, referencing guidance, and derivative versions like YP-CORE and GP-CORE, the CORE System Trust’s CORE-10 information page is the page to bookmark.

Administering CORE-10 digitally, inside your practice management software

Paper forms work, but they put the reversal and the summing on whoever’s holding the clipboard. Practice management software like Pabau can run the CORE-10 as a digital form, applying the reverse-scoring to items 2 and 3 automatically. It totals the Clinical Score and attaches the result directly to the client’s record.

The same system that handles a client’s counseling informed consent form can host CORE-10 right alongside it, so intake paperwork and outcome tracking live in one place.

Digitizing the CORE-10 changes what you can actually do with it week to week:

• Scores get logged against the same client timeline automatically, so a trend line across sessions replaces a stack of loose paper totals.
• A flag on item 6 can route straight to whoever’s responsible for follow-up that day, instead of waiting for someone to notice it on a printed sheet.
• Clients complete it on their own device before a session, which keeps the check-in from eating into appointment time.
• Historical scores stay attached to the record permanently, so nothing gets lost between practitioners or between systems.

That data only helps if the record around it is solid. Pair digital outcome tracking with clinical documentation AI to keep session notes and outcome scores in the same place. Compare how different practice management platforms handle mental health outcome data before you commit to one.

Keep CORE-10 administration consistent, session after session

Standardize when you administer it. Explain what the score means before handing it over, so clients aren’t guessing at what a “4” versus a “2” implies. Pairing that conversation with practical take-home tools, like coping cards, turns the number into action rather than just a data point. Handle item 6 carefully.

A positive response there needs a same-day clinical conversation, not a note for next session, regardless of what the total score says. If risk indicators escalate, pair that conversation with a formal danger assessment.

Review trends, not single scores. Three sessions at 16 tells a different story than a jump from 8 to 16 in a week. The latest number can look identical either way. What matters is the trend behind it, not the single snapshot. A sustained rise like that is often the cue to revisit the treatment plan itself, not just the score.

Keep that history documented alongside your session notes so the pattern stays visible to anyone reviewing the case, not just the person who administered it.

How CORE-10 compares to PHQ-9 and GAD-7

PHQ-9 and GAD-7 are condition-specific: one screens for depression severity, the other for generalized anxiety. The CORE-10 doesn’t target a single diagnosis. It’s a broader distress and functioning measure, which is why it works as a general intake and monitoring tool across a mixed caseload rather than a condition-specific screener.

Many UK services run all three together: PHQ-9 and GAD-7 to track named symptom clusters, CORE-10 to track overall distress and functioning session to session. None of them substitute for a clinical interview. They exist to make the trend visible between the interviews that actually do the diagnostic work.

Making CORE-10 routine, not just another form

A CORE-10 score is only useful if it’s scored the same way every time. Reverse items 2 and 3, and check item 6 as the risk item regardless of the total. Then read the result on the real 0-40 scale, not a mean forced back to 0-4. Get those three things right and a ten-item form tells you more than its size suggests.

Pabau handles that consistency automatically. It applies the reverse-scoring, flags item 6, and keeps every score attached to the client’s timeline. That makes a trend visible at a glance instead of buried in a stack of paper forms.

See how Pabau handles outcome monitoring

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Continue your research

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Frequently asked questions about the CORE-10