Intrinsic Motivation Inventory for Heart-Healthy Lifestyle (IMI-HeartLife) in Cardiovascular Disease Prevention: A Validation Study.
Jina Choo, Songwhi Noh, Yura Shin
PMID 41432302WHAT IT FOUND
A 16-item questionnaire measured motivation for heart-healthy lifestyle in 703 Korean adults without cardiovascular disease.
It gave stable scores over two weeks and worked the same for men and women. Nurses could use it to assess motivation before prevention education.
Key findings
01The final model retained 16 items and reflected three motivation subscales identified by factor analysis.
02When 50 participants repeated the questionnaire after 15 days, total scores were stable, with a reliability value of 0.84.
03Motivation scores were positively correlated with reported heart-healthy lifestyle behaviours (r = 0.69).
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
Participants were South Korean adults aged 19 to 64 with no history of cardiovascular disease, so results may not apply to older adults, people with cardiovascular disease, or other cultures. The questionnaire was tested online only, and the paper notes that paper-based use and digital access inequalities need further study. The comparator motivation scale had low reliability in some subscales in this sample, with Cronbach's α as low as 0.56, which could affect discriminant validity. The authors removed Pressure/Tension and Relatedness subscales, so the scale does not cover the full original Intrinsic Motivation Inventory. The paper reports a 10% dropout rate but also states no participants withdrew and no missing responses, so the handling of incomplete data is unclear. No patient outcomes were measured; this was a scale validation study.
Declared interests
Funded by National Research Foundation of Korea grants from the Korean Government and Ministry of Science and ICT. No other author conflicts are stated in the supplied text.
The easy way to misread this
Do not conclude that using this questionnaire improves heart-healthy behaviour or cardiovascular outcomes. The study only validated a motivation scale in 703 adults without cardiovascular disease; it did not test a nurse-delivered intervention.