Designing User Interfaces for Low-Literacy Populations in Central African Republic: A Technological Approach

Low-literate populations in Central African Republic face significant challenges in accessing information through traditional interfaces designed for high-literacy users. A mixed-methods approach combining qualitative interviews with usability testing was employed. Data were analysed using thematic analysis to identify patterns in user responses and interface effectiveness. Users demonstrated a preference for simplified text (direction: clear, proportion: 75%) over complex language, which improved their understanding of basic health information (theme: reduced confusion). The study validated the efficacy of using simpler language and more visual elements in user interfaces for low-literacy populations. Future research should explore long-term usability and cost implications of these design changes. User Interfaces, Low-Literacy Populations, Central African Republic Model estimation used θ̂=argminθ∑ᵢ(yᵢ,f_θ(xᵢ))+λθ₂², with performance evaluated using out-of-sample error.