Introduction Evidence-based practice skills and habits begin during undergraduate education and continue through professional life. It is important novices learn the skills in their education programme that are required in practice. This study explores strategies experienced occupational therapy supervisors use to encourage novices to be evidence based, and how these might be enhanced. Method Qualitative descriptive methodology was used to explore the views and experiences of 15 experienced supervisors from a range of practice areas and geographical locations, interviewed in four focus groups. Results Evidence-based practice is an element of professional reasoning not isolated from client-centred practice or from reflective practice. Five sources of evidence to inform competence in professional decision-making were identified: (a) research evidence from literature; (b) local environment, resources and culture; (c) client’s expertise and perspective; (d) expertise of others; and (e) practitioners’ own knowledge and experience. Conclusion Intentional use of all five sources of evidence to inform professional decision-making contributes to habits of evidence-based thinking and practice. Experienced therapists and educators can support evidence-based practice in novices by prompting questioning and developing systems supportive of scanning for evidence in each area. Collaboration in this endeavour will enhance integration of academic and practice education.