Why the study?
Do reduced-item versions of the Heart Check tool accurately reproduce the results of the full 226-item assessment for evaluating employer supports for cardiovascular health?
Do reduced-item versions of the Heart Check tool accurately reproduce the results of the full 226-item assessment for evaluating employer supports for cardiovascular health?
Brief 27- and 55-item versions of the Heart Check tool demonstrate a moderate to strong ability to reproduce the results of the full 226-item assessment for evaluating worksite cardiovascular health supports.
Abbreviated Heart Check versions may aid worksite screening; leaves open whether they predict employee cardiovascular outcomes.
PURPOSE: Develop and test a reduced-item version of an established tool to measure employer supports for cardiovascular health. METHOD: A random set of 1000 worksites throughout New York State was surveyed in 1999 with Heart Check, a 226-item assessment of employer supports for cardiovascular health. Correlation, Guttman, factor, and ordinary least squares (OLS) regression analyses were used to identify reduced-item versions. The reduced-item versions were then assessed for their abilities to similarly rank and detect changes in 255 different worksites participating in an intervention program. Regression, correlation, and kappa analyses were used. RESULTS: Analysis of the Heart Check instrument identified two brief versions with 27 and 55 items. OLS regression of full Heart Check scores for these versions had adjusted R2 of .95 and .97, respectively. DISCUSSION: Both reduced-item versions demonstrated a moderate to strong ability to reproduce the results observed with the full Heart Check.
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Fisher et al. (2008) studied this question.
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