Adaptation of the measurement methodology of the WAI(S) working (psychotherapeutic) alliance inventory (short)

<p><strong>Context and relevance.</strong> The article is devoted to the primary adaptation of the WAI-S (Working Alliance Inventory — Short; Inventory of the Working Alliance — Abbreviated version) measurement methodology in a Russian-speaking sample. A therapeutic alliance is a specific relationship that is formed between a psychologist and a client in the process of psychotherapy and counseling, and is also related to the effectiveness of psychotherapy. Today, there are no adapted tools for measuring the alliance in the psychologist-client dyad in Russian. Goal. This study is aimed at translating, adapting, and evaluating the psychometric characteristics of WAI-S. <strong>Objective.</strong> This study is aimed at translating, adapting, and evaluating the psychometric characteristics of WAI-S. <strong>Hypothesis.</strong> The translated and adapted WAI-S methodology will have sufficient psychometric validity characteristics to use the work alliance assessment. <strong>Methods and materials.</strong> The study included a single slice after 4 meetings between the client and therapist, using a short version of WAI-S (Working Alliance Inventory-S) and the Session Rating Scale (SRS, Session Rating Scale, Miller, Duncan, & Johnson, 2002) to assess the approximate validity. The study involved 226 clients with an average age of 24.23 (min = 18, max = 58, mod = 21), and 228 questionnaires filled out by psychotherapists, 24 unique therapists (average age = 36, min = 22, max = 74, mod = 25). <strong>Results.</strong> The analysis showed high rates of internal consistency of the scales, a one-factor structure of the methodology was obtained in both the psychotherapist and client versions. <strong>Conclusions.</strong> The results of the study indicate the validity of the one-factor version of WAI-S and its suitability for use in Russian psychological research and practice.</p>