Ah, context. Context matters in healthcare interventions and so many improvement projects and similar interventions ignore context. This paper, Measuring organizational and individual factors thought to influence the success of quality improvement in primary care: a systematic review of instruments, is important because it attempts to discover measures that influence interventions into account. The results are mixed.
"We identified 186 potentially relevant instruments, 152 of which were analysed to develop the taxonomy. Eighty-four instruments measured constructs relevant to primary care, with content measuring CQI implementation and use (19 instruments), organizational context (51 instruments), and individual factors (21 instruments). Forty-one instruments were included for full review. Development methods were often pragmatic, rather than systematic and theory-based, and evidence supporting measurement properties was limited."
Implementation Science 2012, 7:121