Clear Masks Do Not Prevent Gains During Dynamic Temporal and Tactile Cueing Treatment: An Explanatory Sequential Mixed Methods Pilot Study

Abstract

Purpose: This study aimed to determine the outcomes and impact of Dynamic Temporal and Tactile Cueing (DTTC) treatment when clear vinyl masks were worn. DTTC is one of the few evidence-based treatments for children with childhood apraxia of speech (CAS). Given that DTTC relies on visual, auditory, and tactile cues, it was unknown if treatment gains would be demonstrated when masks were worn and how masking would impact the therapy experience for clinicians and caregivers. Method: A sequential mixed methods design was used to study the efficacy of DTTC treatment in children with CAS when clear masks were worn. The quantitative phase used a multiple-baseline across-participants design. Four children (each 4 years of age) participated in the treatment protocol in which 24 sessions of DTTC were provided over 8 weeks while clear vinyl face masks were worn by participants and clinicians. Whole word accuracy on treated items and generalization to easy and hard untreated items were assessed during baseline, treatment, and follow-up. Semistructured interviews were conducted with clinicians and caregivers following treatment to explore the experience of masks being worn during treatment. Qualitative data were analyzed using descriptive thematic analysis. Results: Three children completed the treatment protocol. Visual and statistical analyses revealed that two participants demonstrated significant treatment effects, with one also demonstrating generalization. The remaining participant demonstrated marginal treatment gains. Qualitative findings revealed two main themes: “mask wearing was inconvenient but did not prevent therapy gains” and “in-person therapy with face masks was preferable to teletherapy.” Conclusions: Masks did not prohibit treatment gains during DTTC therapy, with treatment effects of varying degrees shown for the three participants who completed the protocol. Together, quantitative and qualitative results indicate that mask wearing was, for most, a minor inconvenience that did not substantially interfere with the efficacy of DTTC treatment. Supplemental Material: https://doi.org/10.23641/asha.26408854