Table 1 Search terms used

S1

(deaf* OR “hearing impair*” OR “hearing loss”) AND (“sign* language” OR signing)

S2

(telemedicine OR telemental health OR telehealth OR telepsyc* OR telepractice OR telecomm* OR teleinterv*) OR (video*)

S3

(assessment OR instrument* OR measure* OR questionnaire OR survey)

S4

(efficacy OR effective*) OR (reliab* OR valid*) OR (satisf* OR accept*)

S5

S1 AND S2 AND S3 AND S4