The Incredible Years Parent-Toddler Programme and parental language: a randomised controlled trial

Area of Science:

• Child Development
• Linguistics
• Behavioral Science

Background:

• Parental language significantly influences children's language development.
• Parenting programs, grounded in social learning theory, improve parenting behaviors.
• Evidence for parenting programs' impact on parental language is limited.

Purpose of the Study:

• To evaluate the effectiveness of a behavioral parenting program with language and communication components.
• To assess the program's impact on enhancing parental language skills.

Main Methods:

• A randomized controlled trial involving parents of toddlers (12-36 months) from early intervention centers.
• Parents were assigned to either the Incredible Years Parent-Toddler Programme (IYPTP) or a wait-list control group.
• Parent-child interactions were video-recorded and analyzed for five measures of parental language.

Main Results:

• The IYPTP intervention group showed a significant increase in child-led language interactions (B = -1.44, P = 0.015).
• A positive trend was observed for encouraging language in the intervention group.
• Per-protocol analysis confirmed significant improvements in encouraging language (B = 1.07, P = 0.03).

Conclusions:

• The IYPTP demonstrates limited effectiveness in enhancing specific aspects of parental language.
• The program shows potential for improving child-led and encouraging parent-child communication.
• Further investigation is warranted to explore the full impact of the IYPTP on parental language.