Impact Assessment Method

Introduction   –   KfH Impact Tools   –  What and for whom?   –   Definitions   –   Methods   –   Tools  –   References

The Impact Assessment Method was developed by a Canadian team from McGill University (Roland Grad and Pierre Pluye) to measure the cognitive impact of knowledge resources on health professionals.

It comprises a 7 item scale developed from an extensive literature review.  It has been well validated and tested.

The scale includes:

  • No impact
  • Reassurance (I was more confident)
  • Confirmation (I was doing the right thing)
  • Practice improvement (clinical decision making was enhanced)
  • Recall (I recalled something I’d forgotten)
  • Learning (I learned something new or updated my knowledge)
  • Other

It has been used to test information gained via hand held devices, evidence summaries and alerts by email and more recently on information for patients.


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