Case-based learning uses realistic professional situations to help students learn how to use what they know.
A case might describe a patient presentation, classroom situation, client problem, professional dilemma or other practice scenario. Students are then asked to interpret the situation, draw on relevant knowledge, discuss possible explanations or actions, and decide how they would respond.
The important feature is not simply the presence of a case. Adding a short vignette to a lecture followed by a factual question does not necessarily create meaningful case-based learning.
Cases become educationally powerful when students need to:
Case-based learning therefore sits between highly directed teaching and more open forms of inquiry such as problem-based learning. The educator usually provides clear learning goals and guidance, while students do the intellectual work of applying knowledge to the problem. This conception is consistent across foundational and recent reviews of health-professions CBL.
Case-based learning has a moderate positive effect on students’ academic performance compared with lecture-based learning ➕➕➕➕ [1]. Across health professions education, case-based learning also has a moderate effect on knowledge and comprehension ➕➕➕➕ and a large effect on critical thinking ➕➕➕➕➕ [2]. In medical education, students taught using case-based learning also demonstrate greater ability to analyse professional cases ➕➕➕➕➕ [3].
The evidence for other outcomes is less certain. Case-based learning has not been shown to reliably improve problem-solving, teamwork or communication compared with other teaching approaches [2]. This suggests that simply using a case is not enough—the learning activity needs to require students to actively interpret information, apply their knowledge and justify their decisions.
A recent review examining how case-based learning works suggests that authentic cases, credible facilitation and a safe group environment help students engage with cases and connect their learning to future professional practice [5]. Cases should therefore provide realistic problems for students to reason through, while educators guide rather than replace that reasoning.
This summary draws primarily on systematic reviews and meta-analyses of case-based learning in undergraduate health-professions education.
The strongest quantitative estimate comes from a 2025 review of 11 randomised controlled trials involving 1,339 pharmacy students [1]. Examination performance improved by SMD = 0.58, with moderate heterogeneity (I² = 51%). This provides the basis for the Impact 4 rating.
A broader 2025 review included 22 controlled studies across several health professions and found benefits across several learning outcomes, particularly critical thinking [2]. However, individual meta-analyses often contained relatively few studies and heterogeneity was substantial for some outcomes.
A meta-analysis of eight medical-education RCTs also found improvements in academic performance and case-analysis ability [3].
A considerably larger medical-education review involving 41 studies and 7,667 students reported very large effects on examination performance, but rated the certainty of this evidence as very low, illustrating persistent weaknesses in the CBL literature [4].
For implementation recommendations, this summary also draws on a 2026 realist review of 25 rigorous and relevant undergraduate health-professions studies [5]. This review identified authentic cases, credible facilitation, student trust and safe group environments as important mechanisms influencing successful case-based learning.
An earlier BEME review involving 104 studies [6] established CBL as a form of inquiry-based learning designed to connect theory with professional practice, while also highlighting the poor methodological quality of much of the early evidence.
Overall, the evidence provides reasonable confidence that case-based learning improves student learning, particularly when students must actively apply knowledge to professional problems. Confidence about the exact magnitude of the effect, and about which particular CBL design is best, is lower because interventions vary substantially and much of the literature remains concentrated in medicine, nursing and pharmacy.
