Sample size and power calculation
The primary outcome measure was change in Conceptual Research Use (CRU), from baseline to post intervention, compared between intervention and control (usual care) units. Initial modeling was based on unit aggregate expected change in the primary outcome, dictating a sample size of 34 units to be matched to usual care units, but was replaced by a care aide level analytical model, deviating from the original published trial protocol (NCT03426072). Thus, for an effect size of 