Authors: Masha Y. Ivanova, Thomas M. Achenbach, Leslie A. Rescorla, Lori V. Turner, Julie A. Dumas, Vera Almeida, Meltem Anafarta鈥怱endag, Ieva Bite, Dorret I. Boomsma, J. Carlos Caldas, John W. Capps, Yi鈥怌huen Chen, Paola Colombo, Margareth da Silva Oliveira, Anca Dobrean, Nese Erol, Alessandra Frigerio, Yasuko Funabik, Reda Gedutien臈, Halld贸r S. Gu冒mundsson, Min Quan Heo, Young Ah Kim, Tih鈥怱hih Lee, Manuela Leite, Jianghong Liu, Jasminka Markovic, Monika Misiec, Marcus M眉ller, Kyung Ja Oh, Ver贸nica Portillo鈥怰eyes, Wolfgang Retz, Sandra B. Sebre, Shupeng Shi, Sigurveig H. Sigur冒ard贸ttir, Roma 艩imulionien臈, Elvisa Sokoli, Tanja Tomasevic, Jacqueline M. Vink, Ewa Zas臋pa
Source: International Journal of Geriatric Psychiatry DOI: 10.1002/gps.5268
Publication Type: Journal Article
Abstract:
Objectives: As the world population ages, psychiatrists will increasingly need instruments for measuring constructs of psychopathology that are generalizable to diverse elders. The study tested whether syndromes of co-occurring problems derived from self-ratings of psychopathology by US elders would fit self-ratings by elders in 19 other societies.
Methods/design: The Older Adult Self-Report (OASR) was completed by 12 826 adults who were 60 to 102 years old in 19 societies from North and South America, Asia, and Eastern, Northern, Southern, and Western Europe, plus the United States. Individual and multigroup confirmatory factor analyses (CFAs) tested the fit of the seven-syndrome OASR model, consisting of the Anxious/Depressed, Worries, Somatic Complaints, Functional Impairment, Memory/Cognition Problems, Thought Problems, and Irritable/Disinhibited syndromes.
Results: In individual CFAs, the primary model fit index showed good fit for all societies, while the secondary model fit indices showed acceptable to good fit. The items loaded strongly on their respective factors, with a median item loading of .63 across 20 societies, and 98.7% of the loadings were statistically significant. In multigroup CFAs, 98% of items demonstrated approximate or full metric invariance. Fifteen percent of items demonstrated approximate or full scalar invariance, and another 59% demonstrated scalar invariance across more than half of societies.
Conclusions: The findings supported the generalizability of OASR syndromes across societies. The seven syndromes offer empirically based clinical constructs that are relevant for elders of different backgrounds. They can be used to assess diverse elders and as a taxonomic framework to facilitate communication, services, research, and training in geriatric psychiatry.