Questionnaire survey on the conceptual framework, optimal evaluation, and support measures for children's language disorders in Japan using the Delphi method.

Objectives: To compile the opinions of native Japanese speakers on the conceptual framework, optimal evaluation, and support measures for children with language disorders to devise materials on which a consensus can be formed.

Design: A quantitative descriptive study using the Delphi method.

Setting: Using the Delphi method, 43 clinicians with at least 15 years of experience working professionally with children's language disorders in Japan were surveyed three times via a web-based questionnaire.