Psychometric properties of a prediabetes instrument to assess perceived susceptibility and perceived severity in Appalachians.
OBJECTIVE
The purpose of this study was to develop an instrument that assesses perceived susceptibility and perceived severity for individuals at risk but not yet diagnosed with type 2 diabetes living in Appalachia.


METHODS
From 168 surveys, Cronbach's alpha and item-total correlations assessed reliability, confirmatory factor analysis confirmed construct validity (convergent and discriminant), and multiple linear regression determined concurrent criterion-related validity of perceived susceptibility and perceived severity scales. There were 22 in-depth interviews conducted to triangulate meaning of the scales' results.


RESULTS
Discriminant validity was demonstrated via low interfactor covariation. Concurrent criterion-related validity was also established via significant regression coefficients and supplemental qualitative data.


CONCLUSIONS
This prediabetes screening instrument provides a strong foundation for measuring perceived susceptibility and perceived severity in Appalachian individuals who have prediabetes.
Department of Health and Sport Sciences, University of Louisville, KY 40292, USA.
Lindsay J
LJ
Della
Kristi M
KM
King
Jae-Pil
JP
Ha
D000328:Adult; D001061:Appalachian Region / Q000453:epidemiology; D016002:Discriminant Analysis; D004198:Disease Susceptibility; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D007629:Kentucky / Q000453:epidemiology; D008297:Male; D011236:Prediabetic State / Q000175:diagnosis* / Q000453:epidemiology; D011594:Psychometrics; D012044:Regression Analysis; D015203:Reproducibility of Results; D018570:Risk Assessment; D012720:Severity of Illness Index