Alternative Factor Models and Heritability of the Short Leyton Obsessional Inventory--Children's Version

Autor/inn/en	Moore, Janette; Smith, Gillian W.; Shevlin, Mark; O'Neill, Francis A.
Titel	Alternative Factor Models and Heritability of the Short Leyton Obsessional Inventory--Children's Version
Quelle	In: Journal of Abnormal Child Psychology, 38 (2010) 7, S.921-934 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0091-0627
DOI	10.1007/s10802-010-9414-1
Schlagwörter	Factor Analysis; Models; Measures (Individuals); Adolescents; Twins; Anxiety Disorders; Genetics; Gender Differences + Suchen Sie Ihr Suchwort? Faktorenanalyse; Analogiemodell; Messdaten; Adolescent; Adolescence; Adoleszenz; Jugend; Jugendalter; Jugendlicher; Twin; Zwilling; Humangenetik; Geschlechterkonflikt
Abstract	An alternative models framework was used to test three confirmatory factor analytic models for the Short Leyton Obsessional Inventory-Children's Version (Short LOI-CV) in a general population sample of 517 young adolescent twins (11-16 years). A one-factor model as implicit in current classification systems of Obsessive-Compulsive Disorder (OCD), a two-factor obsessions and compulsions model, and a multidimensional model corresponding to the three proposed subscales of the Short LOI-CV (labelled Obsessions/Incompleteness, Numbers/Luck and Cleanliness) were considered. The three-factor model was the only model to provide an adequate explanation of the data. Twin analyses suggested significant quantitative sex differences in heritability for both the Obsessions/Incompleteness and Numbers/Luck dimensions with these being significantly heritable in males only (heritability of 60% and 65% respectively). The correlation between the additive genetic effects for these two dimensions in males was 0.95 suggesting they largely share the same genetic risk factors. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10