aims of the research

• Revalidate psychometric properties of two versions of the PANSS-MLSF
  • comparability of the PANSS-MLSF scores with the PANSS scores
    • mean squared error, MSE
  • concurrent validity
    • Pearson's correlation between PANSS-MLSF and PANSS
  • convergent validity (if data available)
    • Pearson's correlation between PANSS-MLSF and CGI-S, MMSE, and Lawton IADL
• Further explore the application of PANSS-MLSF
  • Establish and validate cutoff points for clinical categorization
  • Investigate demographic and clinical differences in PANSS-MLSF scores across
    • age?
    • gender?
    • schizoaffective disorder
  • Assess real-world applicability by examining outcomes such as education and employment post-discharge. (responsiveness)
  • test-retest reliability

required data

• scores of each item in PANSS
• patients' characteristics
  • age
  • gender
  • diagnosis
• patients' outcome