Development and psychometric evaluation of a scale to measure telepractice among speech and language pathologists during COVID-19 pandemic.

Purpose: With the outbreak of the COVID-19 and the need for physical distancing, the provision of Speech-Language Pathology (SLP) services via telepractice has been essential. One of the first steps in this field is the need to study telepractice among Speech and Language Pathologists (SLPs). However, there is currently no specific instrument to measure telepractice in SLP to achieve this aim. The present study was conducted to develop and evaluate the psychometric properties of a questionnaire to investigate telepractice among SLPs during the COVID-19 pandemic.

Materials and methods: The study comprised of two stages: (1) development of the questionnaire according to an in-depth literature review and (2) evaluation of the validity and reliability of the questionnaire. The content validity of the instrument was determined by 10 experts in the field of SLP. To check the face validity of the questionnaire, 10 SLPs were interviewed and their opinions were incorporated in the questionnaire. A total of 221 SLPs completed the questionnaire to determine the construct validity and the internal consistency. To evaluate the test-retest reliability, 30 SLPs completed the questionnaire twice with two weeks of interval.

Results: The final version of the questionnaire comprised of three sections and 31 items. The Cronbach's alpha coefficients for different sections of the questionnaire ranged between 0.902 and 0.92 and the Intra-class Correlation coefficients of the sections were found to be between 0.9 and 0.96 in the test-retest reliability.

Conclusions: The questionnaire developed in the study is a valid and reliable scale to measure telepractice among SLPs for educational or research purposes.