title: In reply to Archer and to Lim.
authors.forename: David A
authors.initials: DA
authors.lastname: Cook
authors.forename: Colin P
authors.initials: CP
authors.lastname: West
mesh_terms: D004501:Education, Medical; D004521:Educational Measurement / Q000379:methods*; D017063:Outcome Assessment, Health Care; D012107:Research Design