A Systematic Review of Fidelity of Implementation in Parent-Mediated Early Communication Intervention

This article examined the reporting of four elements of fidelity of implementation (FOI) in parent-mediated early communication treatment studies. Thirty-five studies were reviewed to extract information regarding reporting of dosage, adherence, quality, and participant responsiveness for both practitioners and parents involved in parent-delivered communication treatment for children birth to 6 years of age. Results indicate relatively low reporting practices across the four elements of FOI for both practitioners and parents. Most studies (71%) reported dosage at the practitioner level (e.g., number and length of parent-training sessions), while few studies (14%) reported dosage at the parent level (i.e., amount of intervention implemented by parents outside of treatment sessions). Results also found 60% of studies reported adherence for parent implementation, but only 34% of studies reported adherence for practitioners. Implications for low reporting in the research literature, as well as recommendations for future reporting and research on FOI, are provided.