Analysing synthesis of evidence in a systematic review in health professions education: observations on struggling beyond Kirkpatrick

Abstract

Background: Systematic reviews in health professions education may well under-report struggles to synthesize disparate evidence that defies standard quantitative approaches. This paper reports further process analysis in a previously reported systematic review about mobile devices on clinical placements. Objective: For a troublesome systematic review: (1) Analyse further the distribution and reliability of classifying the evidence to Maxwell quality dimensions (beyond ‘Does it work?’) and their overlap with Kirkpatrick K-levels. (2) Analyse how the abstracts represented those dimensions of the evidence-base. (3) Reflect on difficulties in synthesis and merits of Maxwell dimensions. Design: Following integrative synthesis of 45 K2–K4 primary studies (by combined content–thematic analysis in the pragmatism paradigm): (1) Hierarchical cluster analysis explored overlap between Maxwell dimensions and K-levels. Independent and consensus-coding to Maxwell dimensions compared (using: percentages; kappa; McNemar hypothesis-testing) pre- vs post-discussion and (2) article abstract vs main body. (3) Narrative summary captured process difficulties and merits. Results: (1) The largest cluster (five-cluster dendrogram) was acceptability–accessibility–K1–appropriateness–K3, with K1 and K4 widely separated. For article main bodies, independent coding agreed most for appropriateness (good; adjusted kappa = 0.78). Evidence increased significantly pre–post-discussion about acceptability (p = 0.008; 31/45→39/45), accessibility, and equity-ethics-professionalism. (2) Abstracts suggested efficiency significantly less than main bodies evidenced: 31.1% vs 44.4%, p = 0.031. 3) Challenges and merits emerged for before, during, and after the review. Conclusions: There should be more systematic reporting of process analysis about difficulties synthesizing suboptimal evidence-bases. In this example, Maxwell dimensions were a useful framework beyond K-levels for classifying and synthesizing the evidence-base.