Datum: The influence of therapist factors on the effectiveness of the IY parent program Mentor Meeting 2016 Maartje Raaijmakers The Netherlands

Study into therapist factors Background Methods Results Discussion

Study into therapist factors Background

Study into therapist factors Methods Four Dutch IY Parent program trials: o 1: Indicated prevention (Posthumus/ Raaijmakers et al., 2012) o 2: Selective prevention (Menting et al., 2014) o 3: Selective prevention and treatment (Leijten et al., 2015) o 4: Indicated prevention (Weeland/Chhangur et al., 2016)

Study into therapist factors Methods o N=786 families o n = 452 intervention o n = 334 control o 44 parent groups o 22 group leaders

Study into therapist factors Methods – Measures: Conduct problems: Eyberg Child Behavior Inventory

Study into therapist factors Measures of therapist factors: – All parent groups were videotaped – For each IY group: o 30 minutes coded of 4 sessions (3, 6, 9, 11) o Interrater reliability 84% – Total number videos coded: 296

Study into therapist factors – Therapist skills: Communication: Leader Observation Tool – Listening – Empathy – Encouragement – Positive behavior (praise) Personality/flexibility: Parent Satisfaction Questionnaire – Kindness, helpfulness, interested in child – Input, preparation Program specific factors: Peer and self evaluation – Group process skills (collaborative approach)

Study into therapist factors – Group leader characteristics Clinical experience (months) Number of delivered IY parent groups Adherence to the protocol – Alliance with parents Group process skills (PSE) Relation and Usefulness of techniques for parents (PSQ) Matching group leader and parent characteristics – Interactions between all factors

Study into therapist factors Data analyses – Regression analysis – Interaction models Results – Unfortunately not yet available – What results would you expect? Discussion – Any helpful suggestions?

Study into therapist factors To be continued… Contact: