Table 1. Specification and reporting of each implementation strategy.

Domain	Recommendation strategy: Written evidence-based practice recommendations	Knowledge broker strategy: Webinar-based knowledge broker in addition to recommendations
Actor	EviTAH consortium.	EviTAH consortium. Additionally, a single knowledge broker with a PhD-level qualification, from an allied health professional background, with research experience, employed as a postdoctoral research fellow.
Action	An evidence-based practice recommendation document provided via email.	An evidence-based practice recommendation document provided via email. Additionally, knowledge broker support for the facilitation, transfer, and exchange of information to enable alignment of practice with the recommendations. Prompting questions informed by the COM-B model [49].
Target of the action	Hospital managers responsible for weekend allied health resource allocation decisions.	Hospital managers responsible for weekend allied health resource allocation decisions.
Temporality	Approximately within one week following randomisation.	Approximately within one week following randomisation.
Dose	Single occasion (although recommendation resent if requested).	(1) Initial individualised contact made via email or phone to confirm receipt of the written recommendations, discuss local needs, and discuss a plan over the next 12 months; (2) within six months (according to hospital manager availability), a group webinar was arranged; (3) the group webinar was followed up by individualised contact via email or phone (according to hospital manager preference); (4) a final group webinar was arranged; (5) follow up individualised contact thereafter on an “as needs” basis. Contacts were made over a 12-month period with dose varying according to levels of participant engagement.
Implementation outcome affected	Primary outcome—practice alignment with recommendations: capturing implementation outcomes—adoption of evidence-based practice recommendation, penetration among eligible hospital wards, and fidelity to the recommendation. Economic, process, and qualitative measures: capturing implementation outcomes—appropriateness of the recommendation as a source of information for the decision, acceptability of the trustworthiness and sufficiency of the recommendation, feasibility of the evidence-base to guide clinical practice, sustainability of the intervention and how it was provided, and cost to make the decision. To be reported in other publications.	Primary outcome—practice alignment with recommendations: capturing implementation outcomes—adoption of evidence-based practice recommendation, penetration among eligible hospital wards, and fidelity to the recommendation. Economic, process and qualitative measures: capturing implementation outcomes—appropriateness of the recommendation as a source of information for the decision, acceptability of the trustworthiness and sufficiency of the recommendation, feasibility of the evidence-base to guide clinical practice, sustainability of the intervention and how it was provided, and cost to make the decision. To be reported in other publications
Justification	Evidence-based practice recommendation documents are one of the few implementation strategies that have been evaluated for hospital managers [41,50,51], which have the potential to increase engagement with research implementation [52].	Multifaceted and interactive implementation strategies are thought to improve evidence-informed decision-making, particularly for organisations without a strong research culture [36]. Many public health organisations have adopted knowledge broker roles [53].

COM-B, capability, opportunity, motivation, and behaviour; EviTAH, The Evidence Translation in Allied Health; PhD, post-honorary doctorate.