Pre-therapy process and outcome: A review of research instruments and findings

Mathias Dekeyser, Gary Prouty, Robert Elliott

Research output: Contribution to journalArticlepeer-review

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Pre-Therapy aims at stimulating psychological contact in persons suffering psychosis. We offer a review of Pre-Therapy research instruments and findings. The Pre-Therapy Rating Scale (PTRS, Prouty, 1994) and the Evaluation Criterion for the Pre-Therapy Interview (ECPI, Dinacci, 1997) have been the two most frequently used instruments for the assessment of psychological contact. PTRS scores seem more reliable than ECPI scores, but all manuals need revision. Particular attention is needed for the rating of nonverbal behavior. A preliminary evaluation of the structure of the PTRS indicates that it is two-dimensional rather than three-dimensional. The PTRS and the ECPI can be regarded as measures of communicative contact but also as measures of the meaningfulness of communication. Preliminary outcome studies suggest that pre-post and comparative effect sizes of Pre-Therapy are large for communicative contact, but the number of participants in these studies is generally low, as is the number of systematic case studies.
Original languageEnglish
Pages (from-to)37-55
Number of pages18
JournalPerson-Centered and Experiential Psychotherapies
Issue number1
Publication statusPublished - 2008


  • pre-therapy
  • psychosis
  • psychological contact
  • behavior
  • communicative contact


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