Patient Specific Functional (PSK) Clinical Workflow

Patient Specific Functional (PSK) flow


Patient Specific Functional Scale was developed by Stratford et al 1995 as a self-report outcome measure of function that could be used in patients with varying levels of independence [1]. The aim of PSK is to provide clinicians with a valid, reliable, responsive and efficient outcome measure that would be easy to use and applicable to a large number of clinical presentations [2].

Method of use

  1. Patients are asked to identify up to five important activities they are unable to perform or are having difficulty with as a result of their problem eg putting socks on, shopping.
  2. Patients are asked to rate (on an 11-point scale, [0,10]) the current level of difficulty associated with each activity.
  3. "0" represents “unable to perform” and "10" represents “able to perform at prior level”
  4. Patients select a value that best describes their current level of ability on each activity assessed.

The Patiënt Specifieke Klachten flow contains the Patiënt Specifieke Klachten (PSK) questionnaire and associated calculation. After form submission, the Patiënt Specifieke Klachten calculation is executed automatically. It's easy to extend this flow with conditional logic based on the interpretation of the Patiënt Specifieke Klachten calculation.

Patiënt Specifieke Klachten (PSK) questionnaire


Click here to open the Dutch version
Click here to open the English version


A lower score indicates problems performing the activities.


[1] Stratford P, Gill C, Westaway M, Binkley J. Assessing disability and change on individual patients: a report of a patient specific measure. Physiotherapy canada. 1995 Oct;47(4):258-63.\
[2] Horn KK, Jennings S, Richardson G, Van Vliet D, Hefford C, Abbott JH. The patient-specific functional scale: psychometrics, clinimetrics, and application as a clinical outcome measure. journal of orthopaedic & sports physical therapy. 2012 Jan;42(1):30-D17.

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