Inter-rater and test-retest reliability, internal consistency, and factorial structure of the instrument for forensic treatment evaluation

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Abstract

In this study, the Instrument for Forensic Treatment Evaluation (IFTE) is introduced. The IFTE includes 14 dynamic items of the risk assessment scheme HKT-R and eight items specifically related to the treatment of forensic psychiatric patients. The items are divided over three factors: protective behavior, problematic behavior and resocialization skills. Inter-rater reliability and test-retest reliability ranged from moderate to almost perfect in a Dutch population of 232 forensic patients. Factor analysis largely confirmed the factor structure. The IFTE is evaluated to be a reliable routine outcome monitoring instrument for supporting and indicating inpatient forensic psychiatric treatment evaluations and processes.
Keywords:instrument for forensic treatment evaluation, routine outcome monitoring, reliability, internal consistency
Original languageEnglish
Pages (from-to)127-144
JournalThe Journal of Forensic Psychology Practice
Volume14
Issue number2
DOIs
Publication statusPublished - 2014

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