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Physical distancing measures (i.e., limiting physical contact with people outside of one’s household, maintaining a 2-metre distance between oneself and others, avoiding non-essential travel, etc.) are among the primary strategies used to prevent transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19). These measures will remain crucial during the rollout of newly developed vaccines to limit community-based spread of COVID-19 and prevent healthcare systems from becoming overburdened. Therefore, it is essential to understand the determinants of public adherence to physical distancing measures to inform current and future public health communications.  

As part of the International COVID-19 Awareness and Responses Evaluation (iCARE) study, a cross-sectional survey was conducted to evaluate behavioural responses to physical distancing measures in Ireland. A nationally representative sample of 1000 adults completed the survey over one week in June 2020 during Phase 2 restrictions. Participants completed measures assessing socio-demographic characteristics, theory-based psychological predictors, and physical distancing behaviours.

Awareness of restrictions in place at the time of data collection was high overall, as was adherence to most physical distancing measures. Participants aged 25–34 years reported the poorest adherence to maintaining a 2-metre distance from others (71.2%, versus 79–90% for all other age groups), avoiding social gatherings (42.4%, versus 52–62%) and avoiding non-essential travel (63.9%, versus 69–79%). Females were slightly …