Evaluating a Shortened Version of the Incredible Years (IY) Basic Programme in a Non-clinical Community Sample

Evaluating a Shortened Version of the Incredible Years Basic Programme in a Non-clinical Community Sample

Aim of study:

To evaluate the effects of the shortened version of the Incredible Years (IY) Basic programme, the study which the parents were recruited to. A randomising experimental control between-group design was used with pre- and post-intervention measurements, and a one-year, four-year and ten-year follow-up. Children and families were randomized to either the shortened basic version (n = 89), or the control group (n = 97).

Study Overview

• Status: Completed
• Conditions: Child Behavior Problems; Parenting Behavior
• Intervention / Treatment: Behavioral: Brief Incredible Years parent training

• Study Type: Interventional
• Enrollment (Actual): 189
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 3 years to 8 years (CHILD)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• No diagnosable behavior problems in child

Exclusion Criteria:

• Diagnosable behavior problems in child

Study Plan

How is the study designed?

Design Details

• Primary Purpose: PREVENTION
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: NONE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Brief Incredible Years parent training; Parent training	Behavioral: Brief Incredible Years parent training; The IY parent training programme (3-8 years) developed by Webster-Stratton at the Parenting Clinic, University of Washington, is a manualised and video-based training programme for parents of young children with conduct problems (Webster-Stratton and Reid, 2003a). Parents assigned to the short IY Basic (S-IY) condition were divided into groups of 10-12 parents. The S-IY was led by two experienced group leaders and parents met weekly for two-hour sessions at a public health care center in the community. The group leaders led discussions regarding central aspects of parenting on the basis of the video vignettes, role play and homework.; Other Names: The Incredible Years Programme series
NO_INTERVENTION: No parent training

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Longitudinal change in ECBI scores	Eyberg Child Behavior Inventory (Robinson et al., 1980). The ECBI provides a list of 36 problem behaviours commonly reported by parents of children with disruptive behaviour problems. The inventory assesses behaviour on two dimensions: the frequency of the behaviour and its identification as a problem. The frequency ratings range from 1 (never) to 7 (always), and are summed to yield an overall problem behaviour Intensity score (Cronbach's alpha 1⁄4 0.82) ranging from 36 to 252.	baseline, 6-8 weeks after intervention, one-year follow up, four-year follow up, ten-year follow up

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Reasons for participation and help seeking behaviour	A questionnaire consisting of 12 questions was developed to assess parents' reasons for participating in child rearing classes. Three subscales measure parental concern (five items, a 1⁄4 0.82), motivation to learn (three items, a 1⁄4 0.42), and own/other's opinion (three items, a 1⁄4 0.42). The questionnaire was sent to all participants in the study. Examples of the questions were: ''I was concerned for my child's behaviour'', ''I was uncertain of how to raise my child'', and ''I think it's interesting to learn about children''. All questions were answered using a five-point Likert scale from ''agree'' to ''disagree''.	Four-year follow up
Longitudinal change in PROC scores	Parents Sense of Competence (Johnston and Mash, 1989). The PSOC consists of 16 items about parents' confidence on being a parent, answered on a six-point scale ranging from ''strongly disagree'' to ''strongly agree''. Scoring for some items is reversed so that, for all items, higher scores indicate greater parenting self-esteem. Two subscales measure efficacy (seven items, a 1⁄4 0.69) and satisfaction (nine items, a 1⁄4 0.77) in parenting.	baseline, 6-8 weeks after intervention, one-year follow up, four-year follow up, ten-year follow up
Longitudinal change in PSI scores	Parent Stress Index, Short Form (PSI-SF; Abidin, 1995). The PSI-SF is a 36 item self-report measure of parenting stress, derived from the full version PSI. The PSI-SF yields a total stress (a 1⁄4 0.90) in addition to scores on three scales: parental distress, parent-child dysfunctional interaction, and difficult child.	baseline, 6-8 weeks after intervention, one-year follow up, four-year follow up, ten-year follow up
Longitudinal change in PPI scores	Parenting Practices Interview (Webster-Stratton et al., 2001). The PPI was adapted from the Oregon Social Learning Centre's Discipline Questionnaire. Two subscales were used; Harsh Discipline (14 items, a 1⁄4 0.79), and Positive Parenting (15 items, a 1⁄4 0.67). Parents reported the probability and the frequency with which they used the different strategies on a seven-point scale.	baseline, 6-8 weeks after intervention, one-year follow up, four-year follow up, ten-year follow up

Collaborators and Investigators

• Sponsor: Regional centre for children and youth mental health and welfare
• Investigators: Principal Investigator: Charlotte Reedtz, Dr. Philos, Arctic University of Norway

Publications and helpful links

General Publications

• Reedtz C, Klest SK, Aalo NM, Rasmussen ID, Vitterso J. Results From an RCT on Brief Parent Training: Long Term Effects on Parental Quality of Life. Front Psychol. 2019 Feb 18;10:260. doi: 10.3389/fpsyg.2019.00260. eCollection 2019.
• Reedtz C, Klest S. Improved parenting maintained four years following a brief parent training intervention in a non-clinical sample. BMC Psychol. 2016 Aug 24;4(1):43. doi: 10.1186/s40359-016-0150-3.

Study record dates

Study Major Dates

• Study Start: January 1, 2004
• Primary Completion (ACTUAL): December 1, 2015
• Study Completion (ACTUAL): June 1, 2016

Study Registration Dates

• First Submitted: July 20, 2016
• First Submitted That Met QC Criteria: July 29, 2016
• First Posted (ESTIMATE): August 1, 2016

Study Record Updates

• Last Update Posted (ESTIMATE): August 1, 2016
• Last Update Submitted That Met QC Criteria: July 29, 2016
• Last Verified: July 1, 2016

More Information

Terms related to this study

• Keywords: positive parenting; parental competence; Harsh discipline
• Additional Relevant MeSH Terms: Behavioral Symptoms; Problem Behavior
• Other Study ID Numbers: Shortened version Basic IY

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED