TY - JOUR
T1 - Positive Mental Well-Being
T2 - A Validation of a Rasch-Derived Version of the Warwick-Edinburgh Mental Well-Being Scale
AU - Houghton, Stephen
AU - Wood, Lisa
AU - Marais, Ida
AU - Rosenberg, Michael
AU - Ferguson, Renee
AU - Pettigrew, Simone
PY - 2017/4/1
Y1 - 2017/4/1
N2 - This study presents a Rasch-derived short form of the Warwick-Edinburgh Mental Well-Being Scale for use as a screening tool in the general population. Data from 2,005 18- to 69-year-olds revealed problematic discrimination at specific thresholds. Estimation of model fit also deviated from Rasch model expectations. Following deletion of 4 items, the 10 remaining items indicated the data fitted the model. No items showed differential item functioning, thereby making comparisons of overall positive mental well-being for the different age, gender, and income groups valid and accurate. Cronbach’s alpha and Rasch Person Separation Index indicated a strong degree of reliability. Overall, the 10-item scale challenges researchers and clinicians to reconsider the assessment of positive mental well-being.
AB - This study presents a Rasch-derived short form of the Warwick-Edinburgh Mental Well-Being Scale for use as a screening tool in the general population. Data from 2,005 18- to 69-year-olds revealed problematic discrimination at specific thresholds. Estimation of model fit also deviated from Rasch model expectations. Following deletion of 4 items, the 10 remaining items indicated the data fitted the model. No items showed differential item functioning, thereby making comparisons of overall positive mental well-being for the different age, gender, and income groups valid and accurate. Cronbach’s alpha and Rasch Person Separation Index indicated a strong degree of reliability. Overall, the 10-item scale challenges researchers and clinicians to reconsider the assessment of positive mental well-being.
UR - http://www.scopus.com/inward/record.url?scp=85014651708&partnerID=8YFLogxK
U2 - 10.1177/1073191115609995
DO - 10.1177/1073191115609995
M3 - Article
C2 - 26471286
SN - 1073-1911
VL - 24
SP - 371
EP - 386
JO - Assessment
JF - Assessment
IS - 3
ER -