Falls Efficacy Scale-International: Exploring psychometric properties with adult day care users

•The psychometric properties of the FES-I were analysed with adult day care users.•The FES-I had excellent internal consistency and test-retest reliability.•Good concurrent validity and acceptable convergent validity were observed.•The FES-I is reliable and valid to measure concern about falling in day care settings. The majority of validation studies with the Falls Efficacy Scale-International (FES-I) are conducted with independent community-dwelling older people, which limits extrapolation to more vulnerable people, namely those receiving adult day care services. This study aimed to analyse the psychometric properties of the FES-I in terms of internal consistency, test-retest reliability, concurrent and convergent validity with users of adult day care centres. A cross-sectional study was conducted. Data collection included a socio-demographic questionnaire, the FES-I, the Activities-specific Balance Confidence Scale (ABC), the Hospital Anxiety and Depression Scale (HADS), the Timed Up and Go test (TUG) and the Five Times Sit to Stand Test (FTSST). Descriptive and inferential analyses were performed. A total of 100 users of adult day care centres (81.94 ± 6.43 years old; 77% female) have participated. The FES-I had excellent internal consistency (α = 0.970) and test-retest reliability (ICC2,1 = 0.979). A significant negative correlation was found between the FES-I and the ABC (rs = −0.828; p