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Psychometric analysis of the Patient Assessment of Own Functioning Inventory in women with breast cancer
Mandy J Bell1, Lauren Terhorst, Catherine M Bender
1Magee-Womens Research Institute, Pittsburgh, PA 15213, USA. mjb111@pitt.edu
Background And Purpose:
The purpose of this secondary analysis was to examine the reliability and validity of the Patient Assessment of Own Functioning Inventory (PAOFI) in postmenopausal women with early-stage breast cancer before adjuvant therapy.
Methods:
Data from 259 postmenopausal women with early-stage breast cancer before adjuvant therapy were analyzed. Exploratory factor analysis was used to uncover the PAOFI's underlying factor structure and reliability coefficients were computed for each subscale.
Results:
5 factors measuring perceived cognitive functioning had eigenvalues > 1 and accounted for 54% of the extracted variance. Subscale reliability coefficients ranged from .572 to .883.
Conclusions:
Psychometric evaluation of the PAOFI provided evidence of reliability and construct validity in this population. Additional studies are needed to confirm the 5-factor structure.
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