Influence of Therapist Attachment Style on the Working Alliance in Individual Psychotherapy: A Systematic Review and Meta-Analysis.

Introduction: Attachment style and working alliance are two fundamental variables in psychotherapy. This systematic review aims to provide data on the relationship between therapist attachment and alliance in psychotherapy, updating a previous review and providing a quantitative synthesis (meta-analysis).

Method: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement recommendations were followed.