1. American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders, Text Revision (4th ed.). Washington, DC: Author.
2. Blazer, D., Hughes, D. C., & George, L. K. (1987). The epidemiology of depression in an elderly community sample. The Gerontologist, 27, 281–287.
3. Byrne, B. M. (1998). Structural equation modeling with LISREL, PRELIS, and SIMPLIS: Basic concepts, applications, and programming. Mahwah, NJ: Erlbaum.
4. Byrne, B. M. (2004). Testing for multigroup invariance using AMOS graphics: a road less travelled. Structural Equation Modeling, 11, 272–300. doi: 10.1207/s15328007sem1102_8 .
5. Canadian Study of Health and Aging Working Group. (1994a). Canadian study of health and aging: study methods and prevalence of dementia. Canadian Medical Association Journal, 150, 899–913.