“…More research is also needed on the variance in performance in successful implementation, to understand who is more or less likely to be successful in making and sustaining change. A recent study examining the determinants of regulatory compliance in health and social care services, largely drawing on studies of nursing homes, found higher compliance in smaller facilities and those with higher nurse staffing levels and lower turnover 7. More studies examining variation in performance, the factors associated with variance and examination of the characteristics of positive deviants will strengthen our understanding of implementation and improve the likelihood that organisations can succeed in meeting both external demands and internal drivers to increase safety and quality.…”