title: Classifying risk status of non-clinical adolescents using psychometric indicators for psychosis spectrum disorders.
abstract: This study is an attempt to evaluate extant psychometric indicators using latent profile analysis for classifying community-derived individuals based on a set of clinical, behavioural, and personality traits considered risk markers for psychosis spectrum disorders. The present investigation included four hundred and forty-nine high-school students between the ages of 12 and 19. We used the following to assess risk: the Prodromal Questionnaire-Brief (PQ-B), Oviedo Schizotypy Assessment Questionnaire (ESQUIZO-Q), Anticipatory and Consummatory Interpersonal Pleasure Scale-Adolescent version (ACIPS-A), and General Health Questionnaire 12 (GHQ-12). Using Latent profile analysis six latent classes (LC) were identified: participants in class 1 (LC1) displayed little or no symptoms and accounted for 38.53% of the sample; class 2 (LC2), who accounted for 28.06%, also produced low mean scores across most measures though they expressed somewhat higher levels of subjective distress; LC3, a positive schizotypy group (10.24%); LC4 (13.36%), a psychosis high-risk group; LC5, a high positive and negative schizotypy group (4.45%); and LC6, a very high distress, severe clinical high-risk group, comprised 5.34% of the sample. The current research indicates that different latent classes of early individuals at risk can be empirically defined in adolescent community samples using psychometric indicators for psychosis spectrum disorders. These findings may have implications for early detection and prevention strategies in psychosis spectrum disorders.
authors.affiliation: Department of Educational Sciences, University of La Rioja, La Rioja, Spain; Prevention Program for Psychosis (P3), Oviedo, Spain; Center for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Fonseca-Pedrero
authors.affiliation: Department of Psychology, University of Wisconsin-Madison, USA; Department of Psychiatry, WisPIC, University of Wisconsin-Madison, USA. Electronic address: dgooding@wisc.edu.
authors.forename: Diane C
authors.initials: DC
authors.lastname: Gooding
authors.affiliation: Department of Psychology, University of Loyola, Seville, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Ortuño-Sierra
authors.affiliation: Department of Psychology, University of Wisconsin-Madison, USA.
authors.forename: Madeline
authors.initials: M
authors.lastname: Pflum
authors.affiliation: Prevention Program for Psychosis (P3), Oviedo, Spain; Department of Psychology, University of Oviedo, Oviedo, Spain.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Paino
authors.affiliation: Center for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain; Department of Psychology, University of Oviedo, Oviedo, Spain.
authors.forename: José
authors.initials: J
authors.lastname: Muñiz
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D010551:Personality; D011594:Psychometrics; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000523:psychology; D018570:Risk Assessment; D012307:Risk Factors; D012737:Sex Factors; D011795:Surveys and Questionnaires
keywords: Anhedonia; Early detection; Latent class; Prodromal symptoms; Schizotypal; Social/interpersonal pleasure