• Assessing the Factor Structure...

*Result*: Assessing the Factor Structure and Measurement Invariance of the Pittsburgh Sleep Quality Index Between Postmenopausal Breast Cancer Survivors and Controls.

Title:
Assessing the Factor Structure and Measurement Invariance of the Pittsburgh Sleep Quality Index Between Postmenopausal Breast Cancer Survivors and Controls.
Authors:
Scott PW; Department of Health and Community Systems, School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA pws5@pitt.edu., Godzik CM; Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA., Morris JL; Department of Health and Community Systems, School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA., Chasens ER; Department of Health and Community Systems, School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA., Bender CM; Department of Health and Community Systems, School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA.
Source:
Journal of nursing measurement [J Nurs Meas] 2025 Oct 16; Vol. 33 (3), pp. 414-424. Date of Electronic Publication: 2025 Oct 16.
Publication Type:
Journal Article; Observational Study
Language:
English
Journal Info:
Publisher: Springer Pub. Co Country of Publication: United States NLM ID: 9318902 Publication Model: Electronic Cited Medium: Internet ISSN: 1945-7049 (Electronic) Linking ISSN: 10613749 NLM ISO Abbreviation: J Nurs Meas Subsets: MEDLINE
Imprint Name(s):
Original Publication: New York : Springer Pub. Co., c1993-
MeSH Terms:
Breast Neoplasms*/complications , Breast Neoplasms*/drug therapy , Breast Neoplasms*/psychology , Cancer Survivors*/psychology , Cancer Survivors*/statistics & numerical data , Surveys and Questionnaires*/statistics & numerical data , Postmenopause*/psychology , Sleep Quality*, Sleep Wake Disorders/diagnosis ; Sleep Wake Disorders/etiology ; Psychometrics/instrumentation ; Case-Control Studies ; Factor Analysis, Statistical ; Secondary Data Analysis ; Longitudinal Studies ; Humans ; Female ; Middle Aged ; Aged ; Reproducibility of Results
Contributed Indexing:
Keywords: cancer survivorship; factor analysis; measurement invariance; postmenopause; sleep quality
Entry Date(s):
Date Created: 20240826 Date Completed: 20260225 Latest Revision: 20260225
Update Code:
20260225
DOI:
10.1891/JNM-2024-0018
PMID:
39187306
Database:
MEDLINE

*Further Information*

*Background and Purpose: This study evaluates the Pittsburgh Sleep Quality Index (PSQI) in terms of factor structure and measurement invariance (MI). The sample included postmenopausal breast cancer (BC) survivors (n = 101) and matched healthy controls (n = 60). Methods: Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed on PSQI's seven component scores. MI was tested between groups and across time using Bayes factor (BF). Results: Two factors were identified: sleep efficiency and perceived sleep quality. MI is evidenced between groups (BF < 0.007) and over time (BF > 150). Conclusions: PSQI scores with two subscales are comparable between postmenopausal BC survivors and controls over a 1-year period, providing some validation of PSQI for researching sleep quality in this population.
(© 2025 Springer Publishing Company.)*