This file contains data described in this paper published in Social Psychological and Personality Science. ISSN 1948-5506.It contains data about 180 resettled refugees in the UK at three time points, each about one year apart (2014-2016). Their English language proficiency, their contact with British people, and their well-being was measured at each of these time points. Gender and age are included in the dataset too. The paper mentioned above provides further information about the procedure and measurements. Missing data has been given a value of -999.A copy of SPSS software is required to view the .sav file. Or see the .xlsx file copy.Abstract from research paperThe effects of intergroup contact on prejudice are well established. However, its effects on minority group well-being have been rarely studied. We hypothesised that contact with members of the majority culture will be related to better well-being, and that this is facilitated by majority language proficiency. We tested this hypothesis in a three-wave longitudinal study of refugees over two years (N = 180). Cross-lagged path modelling confirmed that intergroup contact at earlier time points was associated with increased well-being at later time points; the reverse associations (from earlier well-being to later contact) were not reliable. Self-rated earlier English language competence was positively associated with later intergroup contact (but not the reverse), suggesting that improving majority language proficiency might be the key to better well-being of refugees, with intergroup contact being the mediator between language and well-being.</div