Examining the factor structure of the Pittsburgh Sleep Quality Index in a multi-ethnic working population in Singapore

• Main Authors: Dunleavy, Gerard, Bajpai, Ram, Tonon, André Comiran, Chua, Ai Ping, Cheung, Kei Long, Soh, Chee Kiong, Christopoulos, Georgios I., de Vries, Hein, Car, Josip
• Other Authors: Nanyang Business School
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Medicine; Sleep Quality; Factor Analysis
• Online Access: https://hdl.handle.net/10356/142440
• Institution: Nanyang Technological University

The Pittsburgh Sleep Quality Index (PSQI) is a widely used measure for assessing sleep impairment. Although it was developed as a unidimensional instrument, there is much debate that it contains multidimensional latent constructs. This study aims to investigate the dimensionality of the underlying f...