title: New theory from an old technique: the Rolma matrices.
abstract: BACKGROUND
  Understanding the reasons behind non-adherence to clinical practice guidelines is a complex process. Many explanatory models have been proposed that are grounded in qualitative theory. The 2 × 2 matrix has often been used to condense this potentially complex information into a format understandable to clinicians without educational or qualitative backgrounds.
  
  
  METHODS
  The concept of tacit knowledge and its interplay with evidence-based practice is explored and the role of matrices in demonstrating various interactions is defined.
  
  
  RESULTS
  Two new matrices are proposed to describe how experience and tacit knowledge may determine the outcome of patients, regardless of the evidence base.
  
  
  CONCLUSIONS
  The Rolma 1 and 2 matrices can be used to demonstrate to all clinicians, regardless of their background, how their experiences effect judgements and why junior (and senior) staff may not appear to engage with best practice.
authors.affiliation: Paediatric Emergency Medicine Leicester Academic Group, Leicester Royal Infirmary, Leicester, UK. dr98@le.ac.uk
authors.forename: Damian
authors.initials: D
authors.lastname: Roland
authors.forename: David
authors.initials: D
authors.lastname: Matheson
mesh_terms: D000465:Algorithms; D002983:Clinical Competence; D055317:Evidence-Based Practice; D019983:Guideline Adherence; D006801:Humans; D017145:Models, Educational; D013663:Teaching / Q000379:methods*; D006113:United Kingdom