Internet self-efficacy moderates the association of information technology ability with successful ageing among older employees in three African samples.

The literature suggests that two distinct competencies [i.e., information technology ability (ITA), and internet self-efficacy] are necessary for the effective use of information technologies for successful ageing, but no study has examined the association of these skills on successful ageing and its domains (i.e., illness avoidance, functioning, and engagement with life). This study investigated whether Internet Self-Efficacy (ISE) moderates the potential association of ITA with successful ageing. The study adopted a cross-sectional design based on the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist and includes measures against confounding and common methods bias. The participants were 1186 older workers aged 50 years or older in three African countries (Kenya = 350; Nigeria = 260; Ghana = 576). The minimum sample size necessary was calculated, and data were analysed with hierarchical linear regression analysis. After controlling for the covariates, ITA and ISE had a positive association with successful ageing as well as illness avoidance, functioning, and engagement with life in the whole sample. ITA was also positively associated with successful ageing and its domains in Kenya and Ghana. The associations of ITA with successful ageing and its domains were positively moderated by ISE in the whole sample and within each of the three samples. Higher ITA can be associated with successful ageing among working older adults, and ITA positively influences successful ageing at different levels of ISE. Older adults with high ITA are more likely to avoid illness at a higher ISE.