READY is a self-report prospective longitudinal study of deaf and hard of hearing (DHH) young people aged 16 to 19 years on entry. Its overarching aim is to explore the risk and protective factors for successful transition to adulthood. This article introduces the cohort of 163 DHH young people, background characteristics and study design. Focusing on self-determination and subjective well-being only, those who completed the assessments in written English (n = 133) score significantly lower than general population comparators. Sociodemographic variables explain very little of the variance in well-being scores; higher levels of self-determination are a predictor of higher levels of well-being, outweighing the influence of any background characteristics. Although women and those who are LGBTQ+ have statistically significantly lower well-being scores, these aspects of their identity are not predictive risk factors. These results add to the case for self-determination interventions to support better well-being amongst DHH young people.

This article concerns online data capture using survey methods when the target population(s) comprise not just of several different language-using groups, but additionally populations who may be multilingual and whose total language repertoires are commonly employed in meaning-making practices—commonly referred to as translanguaging. It addresses whether current online data capture survey methods adequately respond to such population characteristics and demonstrates a worked example of how we adapted one electronic data capture software platform (REDCap) to present participants with not just multilingual but translanguaging engagement routes that also encompassed multimodal linguistic access in auditory, orthographic, and visual media. The study population comprised deaf young people. We share the technical (coding) adaptations made and discuss the relevance of our work for other linguistic populations.