Reliability and validity of the translated Psychotherapy Expectancy Inventory

Area of Science:

• Psychology
• Clinical Psychology
• Psychotherapy Research

Background:

• Matching patient expectations with therapy is crucial for treatment efficacy and retention.
• Existing tools for assessing therapy expectations lacked a validated Hebrew version.
• The Psychotherapy Expectancy Inventory-Revised (PEI-R) is a key instrument for measuring these expectations.

Purpose of the Study:

• To translate and validate the Psychotherapy Expectancy Inventory-Revised (PEI-R) into Hebrew.
• To establish the reliability and validity of the Hebrew version of the PEI-R for use in clinical settings.
• To facilitate research and clinical practice in Israel by providing a culturally adapted tool.

Main Methods:

• Translation of the original English PEI-R into Hebrew.
• Administration of the translated questionnaire to students, therapists, and parents.
• Statistical analyses including test-retest reliability, internal consistency, criterion-related validity, and factor analysis.

Main Results:

• The translated Hebrew PEI-R exhibited high test-retest reliability and internal consistency.
• Significant criterion-related validity was found, differentiating groups based on advice, audience, and relationship expectations.
• Factor analysis confirmed the original four-scale structure, with minor adjustments to two items.

Conclusions:

• The Hebrew version of the PEI-R is a reliable and valid instrument for assessing psychotherapy expectations.
• This validated tool can be used by clinicians and researchers in Hebrew-speaking populations.
• Improved assessment of therapy expectations can lead to enhanced treatment benefits and reduced dropout rates.