Free goal attainment scale template: What it is + how to set GAS goals

Key takeaways

The goal attainment scale scores each patient’s own treatment goals on a five-point scale, from -2 to +2.

A score of 0 means the goal was met exactly as predicted. The T-score converts weighted raw scores onto a standardized scale centered on 50.

Kiresuk and Sherman’s T-score formula includes a correlation correction, so the denominator is not simply the square root of the summed squared weights.

Goal count changes the arithmetic, so a T-score from three goals is not directly comparable with one from a single goal.

Practice management software like Pabau stores the goal wording, the weights, and every dated review score on one patient record.

The goal attainment scale (GAS) measures whether a patient hit the treatment goals they helped set.

Instead of asking every patient the same questions, you write one goal per patient and score the outcome from -2 to +2. A score of 0 means the goal was met exactly as predicted.

This guide covers how to write a scorable goal, how to score it at review, and how the T-score works. The simplified formula in wide circulation drops a correction term, so this guide uses the full version with a worked example. The free template above gives you the worksheet.

What is the goal attainment scale?

The goal attainment scale is an individualized, criterion-referenced outcome measure. Kiresuk and Sherman developed it in 1968 for community mental health programs, and rehabilitation adopted it later. It answers a single question, which is whether this patient reached the goal you agreed with them.

Standardized measures ask the same questions of every patient, which makes them comparable but blunt. GAS goes the other way. You define the goal, the baseline, and the levels either side of the expected outcome before treatment starts.

At review, you score the outcome against that guide. The scoring is quick because the hard work happened at the start. That is when you decided what success and disappointment would each look like for this person.

The five scoring levels, explained

Each level has a fixed descriptor and a fixed meaning. Using them consistently is what makes two clinicians score the same outcome the same way.

These five numbers are raw scores, and they do not add up on their own. That is what the T-score is for. A T-score of 50 means the goal set was met as expected overall, above 50 means better, and below 50 means short.

Some rehabilitation teams record the baseline at -1 rather than -2, which leaves -2 free for deterioration. Either convention works. Pick one and use it across the practice, or your scores stop being comparable.

How to set GAS goals, step by step

Goal setting is a conversation, not a form-filling exercise. Work through these six steps with the patient before treatment starts.

1. Pick the treatment domain. Name the area the intervention will address, such as pain, functional mobility, anxiety, or activities of daily living.
2. Record the baseline. Write down where the patient starts, using whatever measure fits. Examples are pain at 8/10, unable to walk 100 meters, or anxiety interfering with work.
3. Define the expected outcome. Describe what success looks like for this patient. This wording becomes the score of 0, so keep it concrete and measurable.
4. Write the levels either side. Say what +2 and -2 would look like. Those two descriptions frame the realistic range of progress.
5. Weight each goal. When you track several goals, give each one a weight for importance. The weight decides how far that goal moves the T-score.
6. Document it and book the review. Put the wording in the patient record before treatment starts, not afterwards from memory.

Clear wording is what makes scoring quick later. “Improve mobility” is hard to score. “Walk 500 meters without stopping” scores itself. Capture that wording at baseline with digital patient intake forms, so the review scores against what you agreed rather than what anyone remembers.

Worked examples across clinical settings

Physical therapy

A post-stroke patient wants to reach overhead again to put items on a shelf. At baseline she cannot lift her arm above shoulder height.

The expected outcome (0) is reaching full height with 80% accuracy. At +2 she reaches full height ten times in a row without fatigue. At -2 nothing has changed since baseline.

Occupational therapy

An adult returning to work after a wrist injury wants a full eight-hour day at a computer. Right now he types for 30 minutes before pain forces a break.

The expected outcome (0) is a full workday with a break every two hours. At +2 he works the day with minimal breaks. At -2 the 30-minute limit has not moved.

Mental health and anxiety

A patient with social anxiety wants to attend gatherings without a friend along. She currently avoids social events altogether.

The expected outcome (0) is one event a month, staying an hour. At +2 she attends twice a month and starts conversations herself. At -2 she is still avoiding events.

How to calculate the T-score

The T-score turns weighted raw scores into one standardized number centered on 50. Kiresuk and Sherman’s formula is:

T = 50 + 10Σ(wᵢxᵢ) / √(0.7Σwᵢ² + 0.3(Σwᵢ)²)

Here w is the weight you gave each goal and x is that goal’s raw score, from -2 to +2. The 0.7 and 0.3 terms are a correlation correction. Simplified versions drop them and show the denominator as the square root of the summed squared weights alone, which inflates the result.

Take three goals weighted 3, 2 and 1, scored +1, 0 and -1 at review. The weighted sum is 2. The denominator is the square root of 0.7 × 14 plus 0.3 × 36, which comes to 4.54.

So T = 50 + 20 / 4.54, or 54.4. The simplified formula would return 55.3 for the same review. One patient, one point of difference. Across a caseload the two versions tell you different stories about the same treatment.

Goal count moves the arithmetic too. Because the correction term scales with the number of goals, one point of average attainment shifts the T-score further when the set is larger.

Most teams use a lookup table or a calculator rather than working this by hand. Whichever you use, check that it carries the correction term before you trust a number in a report.

Advantages and limitations of goal attainment scaling

What GAS does better than a standardized questionnaire:

• It is sensitive to change. A goal written for this patient picks up progress that a generic questionnaire scores as noise.
• It supports shared decisions. The patient helped write the goal, so the review conversation starts from their own words.
• It travels across disciplines. The method is fixed but the content of the goal is yours, so any specialty can use it.

What it costs you:

• Clinician time at the start. Writing a scorable five-level guide takes practice, and rushed wording is the main cause of inconsistent scoring.
• Scorer variation. Two clinicians can read the same descriptor differently unless the levels name specific, observable behavior.
• Careful aggregation. Combining T-scores across a caseload is a statistical exercise, not a simple average.

Where you want an individualized measure with published scoring already attached, the Canadian Occupational Performance Measure covers similar ground on a fixed 1-to-10 rating.

GAS Light: The simplified variant

GAS Light simplifies the goal-setting stage, not the scoring. You write a SMART statement for the expected outcome only, at score 0, instead of drafting all five levels in advance. At review you rate the outcome against the same graded scale.

Published GAS Light forms, including the version from the Cicely Saunders Institute at King’s College London, keep a graded five- or six-point rating. It is sometimes described as a three-level scale, which is a misreading of the method.

The time saving lands at the goal-setting appointment, which is where standard GAS is slowest. That makes it a fit for primary care, brief interventions, and high-volume clinics where drafting five levels per goal is not realistic.

Using a GAS calculator in practice

Doing the arithmetic by hand is fine for one patient and tedious for a caseload. A calculator applies the same formula every time, so a dropped correction term or a mis-keyed weight stops changing the answer.

Some occupational therapy software now builds goal scoring into the note itself. The weights and raw scores then sit beside the goal wording, rather than in a spreadsheet on someone’s desktop.

Aggregation helps at the practice level too. Group T-scores across a caseload show whether an intervention is working, which is difficult to see one patient at a time.

Which disciplines use it?

GAS turns up wherever treatment is organized around an individual’s goals rather than a diagnosis alone:

• Physical therapy and rehabilitation: measuring functional recovery after injury, surgery, or a neurological event.
• Occupational therapy: tracking activities of daily living, return-to-work plans, and adaptive strategies.
• Mental health and psychology: scoring anxiety, mood, and behavior-change goals in therapy and counseling.
• Speech-language pathology: assessing communication and swallowing goals against a patient’s own priorities.
• Pediatric services: setting developmental and learning goals with children and their families.
• Palliative and hospice care: defining comfort, dignity, and family-centered goals at the end of life.
• Coaching and life skills: measuring progress toward confidence and behavior goals outside a clinical setting.

Funders and referrers often still want a normative score alongside the individualized one. Pairing GAS with a standardized measure such as the Barthel index covers both, without rewriting the goals.

What your practice gets from scoring goals

• Patients stay engaged. A goal in the patient’s own words gives them something specific to aim at, and the score shows movement.
• Outcomes become reportable. T-scores let you compare treatment periods and caseloads instead of describing progress in prose.
• Documentation supports the decision. A scored goal history justifies continuing, changing, or discharging treatment, for insurers and referrers alike.
• Person-centered care gets evidence. UK practices can show CQC inspectors goals the patient helped set, with dated scores against them.

What implementation actually takes

Budget 10 to 20 minutes for the goal-setting conversation and 5 to 10 minutes per review to score. Those numbers hold once clinicians have written a few guides. The first two or three take longer than that.

Workflow matters more than training. When the goal wording, the weights, and the review scores live in the same physical therapy EMR, scoring becomes part of the review. Kept on a separate sheet, it becomes a task someone forgets.

Consistency is the rest of it. Agree one baseline convention, one weighting approach, and one calculator across the team. Then audit a sample of goals each quarter to check the wording is still specific enough to score.

How Pabau keeps GAS goals and scores on one record

Most practices set GAS goals on paper or in a document, then score them inside the progress note. The goal wording lives in one place and the score in another, so nobody can pull a caseload report without opening every record.

Practice management software like Pabau handles it differently. You build the GAS worksheet once as a custom form and attach it to the patient record at the goal-setting appointment. At each review you reopen the same form.

Two changes follow. Reviews get prompted rather than remembered, because the form is tied to the appointment. Reporting then reads across records, so you can see how a whole caseload scored over a quarter.

Custom forms and reporting come with every Pabau subscription, so goal scoring is not a feature you pay extra to switch on.

Score GAS goals inside the patient record

Pabau’s custom forms let you set weighted goals with a patient and score each review on the same record. Reporting then rolls those T-scores up across a caseload.

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Conclusion

GAS earns the extra minutes when the outcome a patient cares about is not something a standard questionnaire asks about. A vaguely worded goal produces a score nobody trusts, so the wording is where the effort belongs.

Start with one clinician and two or three patients. Write the expected outcome carefully, score it at review, and check that your calculator carries the correction term. Then decide whether to roll it out.

Download the template above to run your first cycle on paper. Book a demo to see how Pabau keeps the goal wording, the weights, and each review score on one patient record.

Continue your research

Need a client-centered measure with published scoring? The Canadian Occupational Performance Measure rates performance and satisfaction on a fixed scale, so it complements an individualized GAS goal.

Reporting on upper limb function? The QuickDASH outcome measure gives you a normative arm, shoulder and hand score to sit alongside your goal scores.

Tracking independence after a stroke? The Barthel index scores ten activities of daily living, which is the comparison most funders and referrers ask for.

Building the baseline before you set goals? An ADL assessment tool gives you the functional detail that makes a GAS expected outcome specific enough to score.

Choosing a system to hold the scores? Our roundup of the best occupational therapy practice management software compares how each one handles custom forms and outcome reporting.

Frequently asked questions