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Content and Usability Validation of an Intelligent Virtual Conversation Assistant Used for Virtual Triage During the
Amadeu Sá de Campos Filho1, José Ricardo Vasconcelos Cursino, José William Araújo do Nascimento
1Author Affiliations: Telehealth Center of the Clinical Hospital of the Federal University of Pernambuco (Dr de Campos Filho and Vasconcelos Cursino), Recife, Brazil; Medical Science Center, Federal University of Pernambuco (Dr de Campos Filho), Recife, Brazil; Unissaomiguel University Center (Vasconcelos Cursino), Recife, Brazil; Centro de Informática, Universidade Federal de Pernambuco - Cin UFPE (Dr do Nascimento, and Dra da Silva Lima Roque), Recife, Brazil; Imune Research Lab (Dr do Nascimento, Dr de Souza, Dra da Silva Lima Roque, and Dra de Souza Cavalcanti), João Pessoa, Brazil; Catholic University of Pernambuco (Dr de Souza), Recife, Brazil; and ABC Medical School (Dra de Souza Cavalcanti), São Paulo, Brazil.
Abstract:
This study aimed to describe the development process, content validation, and usability of a COVID-19 screening system incorporated into a chatbot-type intelligent virtual assistant (CoronaBot). This is a methodological research carried out in three phases. The first corresponded to the development of the flowchart and content of the virtual assistant, the second phase consisted of the implementation of the content in chatbot, and the third phase consisted of content validation. Data analysis was performed by agreement rate, content validity index, and kappa statistical test. Finally, in the third phase, the chatbot's usability was analyzed using the System Usability Scale, by 10 users. The CoronaBot content presented domains with agreement rate above 87.5%, and its items referring to symptomatological scores and interface screens had values of content validity index with a mean of 0.96, kappa test with values from 0.70 to 0.76, and interspecialist agreement of 1.00, demonstrating excellence of prototype content. The global usability score was 80.1. The script developed and incorporated into the chatbot prototype achieved a satisfactory level of content validity. The usability of the chatbot was considered good, adding to the credibility of the device.
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