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Talking to your students about operationalizing and validating patient pain.

Patti Neighmond, reporting for NPR, wrote a piece on how the medical establishment's method for assessing patient pain is evolving. This is a good example of why it can be so tricky to operationalize the abstract. Here, the abstract notion in pain. And the story discusses shortcomings of the traditional numeric, Wong-Baker pain scale, as well as alternatives or complements to the pain scale.



No one is vilifying the scale, but recent research suggests that what a patient reports and how a medical professional interprets that report are not necessarily the same thing. From Dr. John Markman's unpublished research:


I think this could also be a good example of testing for construct validity. The researcher asked if the pain was tolerable and found out that their numerical scale was NOT detecting intolerable. This is a psychometric issue.

One of the recommendations for better operationalization: Asking a patient how pain effects their ability to perform every day tasks. I don't think this is a new idea (as a patient, I've completed such scales for PT) but it shows a move away from a numeric scale. I think this could be a good example of ecological validity: Pain, being assessed, as it exists in day to day life.

I think that if you use this piece, it would also be worth while to point out the strengths of the Baker-Wong. It seems to be popular in a wide variety for developmental research. Kids do better with faces, it seems. Also, this scale could be useful in a medical emergency with someone who can't speak or can't speak the same language as their care team.

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