title: The latent structure of obsessive-compulsive symptoms: a taxometric study.
abstract: There is increasing consensus that obsessive-compulsive (OC) symptoms are heterogeneous clinical phenomena that should be assessed, diagnosed, and treated from a multidimensional perspective. However, it remains unclear whether the heterogeneous OC symptoms represent discrete taxonomic entities. In this study, the categorical versus dimensional nature of OC symptoms and associated cognitions was examined in a large undiagnosed sample using taxometric methods. Six potential OC symptoms (washing, checking, obsessing, neutralizing, ordering, and hoarding) and three potential OC-related cognitions (responsibility/threat estimation, perfectionism/certainty, and importance of thoughts/control of thoughts) were examined using the MAXimum EIGenvalue and mean above minus below a cut procedures. Findings were largely consistent with dimensional models of the latent structure of all OC symptoms and cognitions with the exception of hoarding. The implications of these findings for the clinical assessment and diagnosis of OC symptoms and obsessive-compulsive disorder are discussed.
authors.affiliation: Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA. olubunmi.o.olatunji@vanderbilt.edu
authors.forename: Bunmi O
authors.initials: BO
authors.lastname: Olatunji
authors.forename: Ben J
authors.initials: BJ
authors.lastname: Williams
authors.forename: Nick
authors.initials: N
authors.lastname: Haslam
authors.forename: Jonathan S
authors.initials: JS
authors.lastname: Abramowitz
authors.forename: David F
authors.initials: DF
authors.lastname: Tolin
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000523:psychology*; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires