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The Working Alliance Inventory for guided Internet interventions (WAI‐I)
Author(s) -
Gómez Penedo Juan Martín,
Berger Thomas,
grosse Holtforth Martin,
Krieger Tobias,
Schröder Johanna,
Hohagen Fritz,
Meyer Björn,
Moritz Steffen,
Klein Jan Philipp
Publication year - 2020
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/jclp.22823
Subject(s) - psychology , psychological intervention , cronbach's alpha , clinical psychology , confirmatory factor analysis , alliance , psychometrics , internal consistency , intervention (counseling) , the internet , scale (ratio) , reliability (semiconductor) , applied psychology , psychiatry , structural equation modeling , statistics , power (physics) , physics , mathematics , quantum mechanics , world wide web , political science , computer science , law
Objective This study analyses the psychometric properties of the Working Alliance Inventory adapted for guided Internet interventions (WAI‐I). Methods We drew on the data set from a multicenter trial that examined a guided Internet intervention (deprexis) for patients with mild to moderate depression. Two hundred twenty‐three patients completed the WAI‐I and the Patient Satisfaction Questionnaire (ZUF‐8) at posttreatment, and the Attitudes toward Psychological Online‐Interventions Questionnaire (APOI) at baseline. We ran confirmatory factor analyses (CFA) testing two‐ and three‐factor solutions and calculated Cronbach's α, item‐total correlations, and correlations of the WAI‐I with APOI and ZUF‐8. Results The results suggested a two‐factor solution, with a very good model fit and evidence of factor independency, adequate internal consistency, and external validity for the complete scale and the sub‐scales. Conclusions The WAI‐I showed as a reliable and valid instrument to capture alliance in guided Internet interventions, which might facilitate process‐outcome research and treatment development efforts.