 This study is designed as a three-group randomized clinical trial with repeated measures. Three inpatient units medicine, surgery, surgical intensive care will be randomly assigned to one of three interventions: ARCC enhanced didactic content presentations, use of an EBP tool kit which will stay on the unit, environmental EBP prompts, availability of an EBP coach on the unit; ARCC standard all of the above, but without the coach; non-EBP intervention didactic content and environmental prompts, but not related to EBP; placebo. The interventions will be implemented over an estimated 14 weeks, including a 4-week training period, and an estimated 10 weeks to implement an EBP initiative that the nurses on the two ARCC intervention units will develop. 