The comparison of the Behavioral Observation System and the Brief Psychiatric Rating Scale-Expanded

Neil L. Mogge, James P. Lepage, Kevin Del Ben, James Murphy

Research output: Contribution to journalArticle

4 Scopus citations


The construct validity of the Behavioral Observation System (BOS), an observational instrument used by line staff to rate psychopathological behaviors, was studied using comparisons with the Brief Psychiatric Rating Scale-Expanded version (BPRS-E). A sample of 100 inpatient participants was rated using the BPRS-E on the same day they were rated by line staff using the BOS. Pearson product-moment correlations were performed, supporting good convergence and divergence. Principle component analysis on the six BPRS-E scales and the four BOS scales resulted in a three-factor finding. This analysis was supportive of construct validity. Uses of the BOS in light of these findings were discussed.

Original languageEnglish (US)
Pages (from-to)847-852
Number of pages6
JournalJournal of clinical psychology
Issue number7
StatePublished - Jul 9 2002



  • Assessment
  • Behavior
  • Behavioral Observation System
  • Brief Psychiatric Rating Scale-Expanded
  • Inpatient
  • Validity

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Psychology

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