Introduction: Evidence suggests including relational principles in early childhood interventions increases outcomes for children and families. This study evaluated the feasibility and preliminary effectiveness of implementing the Phased Approach to Including a Relational Focus (PAIR) model. The PAIR model is a structured, relationship-focused, and family-centred framework within Paediatric OT practice designed to enhance goal attainment for children with developmental delays.

Methods: Therapists from The Benevolent Society in South Australia and New South Wales participated in PAIR model training and received monthly reflective supervision while delivering six-months of fortnightly sessions to families with children with developmental delays aged 0–7 years. Participants completed demographic questionnaires and pre- and post-intervention Goal Attainment Scaling (GAS-Light) measures. Data were analysed using SPSS (Version 30). Non-normal data (Kolmogorov–Smirnov and Shapiro–Wilk, p < .05) were analysed using the Wilcoxon Signed-Rank test, and correlations between GAS-Light and fidelity scores were examined using Spearman’s rho. Qualitative data from semi-structured interviews and focus groups underwent deductive thematic analysis.

Results: Twelve parents and six therapists completed quantitative measures. GAS-Light scores improved significantly post-intervention (p < 0.001). Fidelity ratings were high (mean = 4.54 ± 0.11) but not correlated with GAS outcomes. Six qualitative themes highlighted that collaboratively developed, small, family-generated goals enhanced parent engagement and capacity, while therapists adjusted initial information-gathering processes to better involve caregivers.

Conclusions: Preliminary findings suggest the PAIR model supports parent engagement and family goal attainment in early childhood intervention. These pilot results demonstrate feasibility for a randomised controlled trial to confirm generalisability and mechanisms of impact.