This study reports the preliminary efficacy results of My-CARE among Chinese Malaysian parents of CSHCN using a single-group pre-post design, assessing depression, anxiety, stress, PF, PI, and PSI. Eight participants attended four weekly 1.5-hour group sessions at a community rehabilitation center, with an average attendance of 94%, surpassing the 75% target. Questionnaire completion rates ranged from 95 to 100%. Satisfaction and acceptability scores averaged 96.73% and 94.17%, respectively. The protocol demonstrated high internal reliability (α = .87), supporting its readiness for a larger-scale controlled study (
27).
Participants in this study reported reduced depression, anxiety, and stress scores following the intervention. Notably, significant differences existed in the pre- and post-intervention depression scores, with a large effect size (g = 0.98). These results are consistent with the effect sizes reported in meta-analyses that documented the effectiveness of ACT across various conditions (
28). The large effects observed in depression may be attributed to cognitive defusion techniques, which assist individuals in detaching from unhelpful thoughts, and the promotion of behavioral activation through engagement in valued activities (
29).
Additionally, this study observed the expected ACT mechanism changes, including increased PF and decreased PI. Notably, the reduction in PI scores approached significance (P = 0.09). This finding aligns with reductions in PI (reflected in lower scores on the Acceptance and Action Questionnaire-II) reported in several studies involving parents of children with neurodevelopmental disabilities (
30) and parents of children with psychiatric issues (
31). Interestingly, PF and PI demonstrated distinct outcomes, with PI showing a stronger trend towards significance (P = 0.09 vs 0.24) and a larger effect size (medium for PI and small-to-medium for PF). The findings suggest that My-CARE may differentially influence PF and PI. These findings reinforce prior studies that indicate PF and PI, while related, are distinct and can vary independently (
18,
32). Future studies with larger samples and follow-ups are needed to provide a clearer understanding.
Furthermore, the overall Parenting Stress Index (PSI) decreased post-intervention, with a medium effect size (g = 0.57). Prior studies have reported that ACT-based interventions for parents lead to a reduction in parental stress (
33). Given that the PSI assesses parental distress, parent-child dysfunctional interaction, and perception of difficult child domains, these findings suggest a positive shift in parental well-being and parent-child communication. This change may stem from greater consistency and responsiveness in parenting (
31).
Overall, the My-CARE protocol was delivered using a flexible and process-based approach while maintaining its main content. This approach enabled the facilitator to respond sensitively to participants’ unique contexts and experiences (
34). Throughout the four sessions, the facilitator alternated focus among participants’ experiences, ensuring that ACT principles were applied in a culturally responsive way that suited the local context. Participants expressed support for the approach and protocol in both quantitative and qualitative feedback. In their qualitative responses, they particularly valued the social support, activities, and number of sessions. However, based on participants’ suggestions, the session duration should be extended to 2 hours in the next study phase to enhance engagement.
This study represents a pioneering initiative in developing and evaluating a culturally sensitive ACT-based intervention tailored for Chinese Malaysian parents of CSHCN. Unlike previous pilot studies that focused solely on efficacy (
34,
35), this study provides a more comprehensive evaluation, encompassing reliability, feasibility, acceptability, satisfaction, and preliminary efficacy of the My-CARE protocol. Additionally, unlike prior approaches that treated PF and PI as opposing points on a single continuum, this study conceptualized them as distinct constructs (
32). This distinction was reinforced using MPFI, which separately assessed PF and PI, thereby enhancing the understanding of the differential influences of these ACT mechanisms.
Despite its strengths, this study has several limitations that warrant consideration. First, the small sample size inherent to this pilot study limits the statistical power to detect meaningful changes and reduces the generalizability of findings to the broader population of parents with CSHCN. Additionally, small samples are prone to inflated effect sizes, which may overestimate the true magnitude of observed outcomes. Second, the lack of a control group introduces potential bias, preventing causal inferences and making it difficult to rule out alternative explanations for the results. Third, the absence of follow-up assessments prevents conclusions regarding the longer-term intervention effects.
Despite these limitations, this study contributed to the growing evidence on culturally adapted ACT interventions within an underrepresented population. Moving forward, future studies should address these limitations by employing larger, randomized controlled trials with longitudinal follow-up measurements.
In this study, the researchers developed an ACT protocol specifically designed for Chinese Malaysian parents of CSHCN and examined its reliability, feasibility, satisfaction, acceptability, and preliminary efficacy. The My-CARE protocol was associated with significant improvements in depression and showed trends approaching significance for PI. This study provides preliminary evidence that ACT can benefit Chinese Malaysian parents of CSHCN when adapted to their linguistic and cultural contexts. However, replication in a larger controlled trial with follow-up measurements is necessary to further validate these findings.