Description of the Questionnaire

KATHS is a tool designed to assess the therapeutic alliance from the client’s perspective. The scale includes three subscales that focus on key dimensions of the therapeutic relationship: the client’s level of satisfaction with the therapeutic relationship, the agreement between therapist and client regarding goal setting, and the positive attachment between therapist and client. The questionnaire is completed by the client and focuses on their subjective experience of the therapy.

Data Analysis and Use

KATHS was applied to a sample of 18 psychotherapy sessions and evaluated by three independent raters. Inter-rater reliability was found to be satisfactory, and there was evidence supporting construct validity, discriminant validity, and criterion-related validity. The scale is both theoretically and empirically validated and is considered appropriate for use within the Greek population. It is particularly useful for quantitatively assessing the therapeutic relationship, conducting research on therapist-client dynamics, and providing feedback in supervision or therapist training contexts.

Objective

The aim of KATHS is to evaluate the therapeutic alliance, meaning the quality of the relationship and collaboration between therapist and client. Measuring this alliance is crucial for understanding the effectiveness of psychotherapy and enhancing the therapeutic process.

Scoring

KATHS uses a Likert scale format, where the client is asked to indicate their level of agreement with specific statements. Although the exact range of the scale is not specified in the excerpt, such scales typically use 5- or 7-point formats (e.g., from 1 = “strongly disagree” to 5 or 7 = “strongly agree”). Each subscale provides an individual score, while the overall average reflects the general level of the therapeutic alliance.

References

Chalkiadaki, A., Kalaitzaki, A. E., & Nestoros, J. (2003). The therapeutic relationship in the Integrative Psychotherapy Model: A case study. 9th Panhellenic Conference of Psychological Research, Rhodes.