Cross-cultural adaptation of the Healthcare Provider-Patient Activation Scale to Japanese.
Shiori Miyamoto, Hiroshi Takasaki
PMID 33362351WHAT IT FOUND
The Japanese version of the provider-activation scale was understandable but showed a strong bias toward extreme positive ratings.
This limits its usefulness for distinguishing therapist attitudes, so it requires modification before clinical use.
Key findings
01All survey items were understood by the participants.
02Most items showed a strong bias toward extreme positive or negative ratings, limiting their ability to distinguish attitudes.
03The correlation between the two main factors was positive, contradicting the expected negative relationship.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study involved only 58 Japanese physical therapists, so the results may not apply to other healthcare providers or cultures. The lack of a neutral response option likely caused the extreme rating bias, making the current scale format unsuitable for this population. The positive correlation between opposing factors suggests a fundamental issue with how the items measure the intended concepts.
Declared interests
The study was supported by a JSPS KAKENHI grant for publication, and the authors declared no conflicts of interest.
The easy way to misread this
Do not assume that high internal consistency means the scale is valid for measuring attitudes. The strong bias toward extreme ratings and the unexpected correlation between opposing factors indicate that the tool currently fails to distinguish between different levels of patient-centered care.