title: The development of a self-reported scale for measuring functionality in patients with schizophrenia--self-reported version of the graphic Personal and Social Performance (SRG-PSP) scale.
abstract: BACKGROUND
  The Personal and Social Performance (PSP) scale is used for the assessment of patient function by mental health professionals. This study aimed to evaluate the internal reliability and validity of a self-reported graphic version of the PSP (SRG-PSP) scale and its correlations with psychiatric symptoms, daily life ability and quality of life.
  
  
  METHODS
  The SRG-PSP scale was developed following the four PSP domains: socially useful activities, personal and social relationships, self-care, and disturbing and aggressive behavior. In total, 108 patients with schizophrenia were enrolled. All participants completed the SRG-PSP, the Activities of Daily Living Rating Scale II (ADLRS-II), and the World Health Organization Quality of Life-BREF (WHOQOL). They were also assessed using the PSP and the Positive and Negative Syndrome Scale (PANSS). Spearman's ρ was used to examine the correlations between SRG-PSP scores and other variables.
  
  
  RESULTS
  The results of the SRG-PSP were significantly correlated to those of their corresponding criteria on the PSP. The global score of the SRG-PSP and the scores of three domains, socially useful activities, personal and social relationships, and self-care, were positively correlated with most sub items of the ADLRS-II and WHOQOL, and were negatively correlated with the PANSS scores. The disturbing and aggressive behavior domain of the SRG-PSP was negatively correlated with most sub items of the ADLRS-II and WHOQOL (ρ=-0.19 to -0.36, all p<0.05) and positively correlated with the PANSS (ρ=0.24-0.30, all p<0.05), with the exception of negative symptoms (ρ=0.09, p=0.40).
  
  
  CONCLUSIONS
  The SRG-PSP is a valid self-reported scale for the assessment of functionality in patients with schizophrenia.
authors.affiliation: Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Ya Mei
authors.initials: YM
authors.lastname: Bai
authors.affiliation: Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Addiction Research Center, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Chih Yin
authors.initials: CY
authors.lastname: Hsiao
authors.affiliation: Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Addiction Research Center, National Cheng Kung University, Tainan, Taiwan; Department of Psychiatry, National Cheng Kung University Hospital, Dou-Liou Branch, Yunlin, Taiwan.
authors.forename: Kao Chin
authors.initials: KC
authors.lastname: Chen
authors.affiliation: Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Kai-Lin
authors.initials: KL
authors.lastname: Huang
authors.affiliation: Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Addiction Research Center, National Cheng Kung University, Tainan, Taiwan.
authors.forename: I Hui
authors.initials: IH
authors.lastname: Lee
authors.affiliation: Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Ju-Wei
authors.initials: JW
authors.lastname: Hsu
authors.affiliation: Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Addiction Research Center, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Po See
authors.initials: PS
authors.lastname: Chen
authors.affiliation: Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Addiction Research Center, National Cheng Kung University, Tainan, Taiwan. Electronic address: ykyang@mail.ncku.edu.tw.
authors.forename: Yen Kuang
authors.initials: YK
authors.lastname: Yang
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011594:Psychometrics / Q000295:instrumentation*; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000175:diagnosis*; D057566:Self Report; D012919:Social Behavior; D055815:Young Adult
keywords: Functionality; PSP scale; Schizophrenia; Self-rating scale