{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T17:01:50Z","timestamp":1779296510902,"version":"3.51.4"},"reference-count":34,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2009,3,27]],"date-time":"2009-03-27T00:00:00Z","timestamp":1238112000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Adolescence"],"published-print":{"date-parts":[[2009,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>We tested the psychometric properties of the Hypomania Checklist (HCL\u201032) in a sample of nonclinical adolescents, examined the association with current psychopathology, and tested if \u201chypomanic\u201d adolescents differ from other participants regarding HCL\u2010scores and psychopathology. A total of 294 students completed the HCL\u201032 and the SDQ, a screening for psychopathology. In adolescence, the internal structure of hypomania seems to be represented by a triple structure. The first factor \u201cactive\u2010elated\u201d is an indicator of symptoms related to energy and activity. The adult factor \u201cirritable\u2010risk taking\u201d is better reflected by two separate factors (\u201cdisinhibited\/stimulation\u2010seeking\u201d and \u201cirritable\u2010erratic\u201d). These factors were associated with externalizing problems. \u201cHypomanic\u201d adolescents showed higher HCL total and disinhibited\/stimulation\u2010seeking scores and reported more conduct problems than \u201cnon\u2010hypomanic\u201d youngsters. The internal structure of the HCL in adolescents mirrors the association of juvenile bipolarity\u00a0with substance use and symptoms of ADHD and conduct disorder and presents preliminary evidence for its\u00a0validity.<\/jats:p>","DOI":"10.1016\/j.adolescence.2009.03.004","type":"journal-article","created":{"date-parts":[[2009,3,30]],"date-time":"2009-03-30T18:56:40Z","timestamp":1238439400000},"page":"1075-1088","source":"Crossref","is-referenced-by-count":45,"title":["Validation of the Hypomania Checklist (HCL\u201032) in a nonclinical sample of German adolescents"],"prefix":"10.1002","volume":"32","author":[{"given":"Martin","family":"Holtmann","sequence":"first","affiliation":[{"name":"Department of Child and Adolescent Psychiatry and Psychotherapy Central Institute of Mental Health J5 D\u201068072 Mannheim Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Franca","family":"P\u00f6rtner","sequence":"additional","affiliation":[{"name":"Department of Child and Adolescent Psychiatry and Psychotherapy University of K\u00f6ln Robert\u2010Koch\u2010Str. 10 D\u201050931 K\u00f6ln Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eftichia","family":"Duketis","sequence":"additional","affiliation":[{"name":"Department of Child and Adolescent Psychiatry and Psychotherapy Goethe\u2010University Frankfurt\/Main, Deutschordenstr. 50 D\u201060528 Frankfurt Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hans\u2010Henning","family":"Flechtner","sequence":"additional","affiliation":[{"name":"Department of Child and Adolescent Psychiatry and Psychotherapy Otto\u2010von\u2010Guericke\u2010University Leipziger Str. 44 D\u201039120 Magdeburg"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jules","family":"Angst","sequence":"additional","affiliation":[{"name":"Research Department University Psychiatric Hospital Lenggstrasse 31, P.O. 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