title: Self-Report Instruments for Clinical Monitoring of Psychosis Risk States.
abstract: OBJECTIVE
  Practice guidelines emphasize frequent clinical monitoring of patients at high risk for psychosis. No brief instrument assessing attenuated psychotic symptoms has been validated for this purpose. This study examined use of three self-report questionnaires, which were developed as psychosis risk screeners, for monitoring symptom severity in a naturalistic clinical sample of 54 adolescents.
  
  
  METHODS
  Self-report measures (Prime Screen-Revised, Prodromal Questionnaire-Brief Version [PQ-B], and Youth Psychosis At-Risk Questionnaire-Brief) and clinician assessments (Structured Interview for Psychosis Risk Syndromes) were administered to participants at baseline and six months.
  
  
  RESULTS
  Changes in self-report scores were moderately correlated with changes in clinician ratings. The PQ-B demonstrated slightly better agreement with changes in clinician ratings than the other two measures.
  
  
  CONCLUSIONS
  Questionnaires developed as psychosis risk screeners could be used for symptom monitoring. Further validation of tools to monitor attenuated symptoms will be a valuable step toward developing an evidence-based approach for treating high-risk youths.
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Emily
authors.initials: E
authors.lastname: Kline
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Thompson
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Caroline
authors.initials: C
authors.lastname: Demro
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Kristin
authors.initials: K
authors.lastname: Bussell
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Gloria
authors.initials: G
authors.lastname: Reeves
authors.affiliation: Dr. Kline is with the Department of Psychiatry, Harvard Medical School, and Beth Israel Deaconess Medical Center, Boston (e-mail: ekline@bidmc.harvard.edu ). Ms. Thompson, Ms. Demro, and Dr. Schiffman are with the Department of Psychology, University of Maryland, Baltimore County, Baltimore. Ms. Bussell and Dr. Reeves are with the Department of Psychiatry, University of Maryland Medical School, Baltimore.
authors.forename: Jason
authors.initials: J
authors.lastname: Schiffman
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011618:Psychotic Disorders / Q000175:diagnosis*; D012306:Risk; D057566:Self Report / Q000592:standards*; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult