Field validation of an app based developmental and speech language screening (SRESHT screener) conducted by grass root workers.

This study validated an app-based developmental and speech language screening (SRESHT screener) conducted by Grass Roots Workers (GRWs) among children below six years of age in a rural community in the state of Tamil Nadu (the field). Method: The study was carried out in two phases, first the training of GRWs and then the validation of the screening conducted by them using the app. For the training, suitable materials were developed, and the GRW's knowledge and skills were evaluated pre- and post-training. Two closed-ended questionnaires were used to evaluate the GRWs' knowledge about the screening tools. The Observed Structured Practical Examination (OSPE) method was used to evaluate their skill. All the participants were selected by convenience sampling and were screened independently by both a Speech Language Pathologist (SLP) and a GRW using the application. Cohen's kappa and percent agreement were used to determine agreement in screening results between the SLP and GRWs. Results: All the GRWs scored at least 75 % and above in both the knowledge and skill assessments conducted post-training. "Substantial agreement" on kappa-based extent of agreement and "almost perfect" agreement on percent agreement were obtained between GRWs and SLP for the app-based screening. Conclusion: The findings of this study imply that the app-based developmental and speech language screening performed in the community by GRWs is valid.