Feasibility and Effectiveness of Mini-Clinical Evaluation Exercise (Mini-CEX) in an Undergraduate Medical Program: A Study From Pakistan

Background

In clinical settings, direct observation (DO) with feedback is an effective method to assess and improve learner performance. One tool used for DO is the mini-clinical evaluation exercise (Mini-CEX). We conducted a study to assess the effectiveness and feasibility of Mini-CEX for medical students at Aga Khan University, Karachi.

Methods

Utilizing a purposive sampling technique, a total of 199 students in six core clerkships of Years 3 and 4 were selected for this study. Participating faculty underwent training workshops for use of Mini-CEX and feedback strategies. Each student was assessed twice by one faculty, using a modified version of the Mini-CEX, which assessed four domains of clinical skills: Data Gathering, Communication, Diagnosis/Differential, and Management Plan and Organization. Feedback was given after each encounter. Faculty and students also provided detailed feedback regarding the process of DO.

Data were analyzed using Statistical Package for Social Sciences (SPSS) version 26 (IBM Corp., Armonk, NY, USA), with categorical variables arranged as frequencies and percentages. The Chi-squared test was used for further statistical analyses, and a P-value of < 0.05 was considered statistically significant. Effectiveness was assessed via a change in student performance between the first and second Mini-CEX, and feasibility was assessed via qualitative feedback.

Results

We obtained three sets of results: Mini-CEX forms (523), from which we included a total 350 evaluations for analysis, 216 from Year 3 and 134 from Year 4, and feedback on DO: student (70) and faculty (18). Year 3 students performed significantly better in all foci of the Mini-CEX between the first and second assessment (P ≤ 0.001), whereas in Year 4, significant improvement was limited to only two domains of the Mini-CEX [Communication of History/Physical Examination (P = 0.040) and Diagnosis/Differential and Management Plan (P < 0.001)]. Students (65.7%) and faculty (94.4%) felt this exercise improved their interaction. 83.3% faculty recommended its formal implementation compared to 27.1% of students, who reported challenges in implementation of the Mini-CEX such as time constraints, logistics, the subjectivity of assessment, and varying interest by faculty.

Conclusion

Direct observation using Mini-CEX is effective in improving the clinical and diagnostic skills of medical students and strengthens student-faculty interaction. While challenges exist in its implementation, the strategic placement of Mini-CEX may enhance its utility in measuring student competency.

Adaptation, psychometric properties, and implementation of the Mini-CEX in dental clerkship

BACKGROUND

Workplace-based assessment is a key component of dental-student clerkships, allowing students to demonstrate clinical proficiency.

PURPOSE

This study adapts the Mini-Clinical Evaluation Exercise (Mini-CEX) to a dentistry-program clerkship, analyzing the results and examining the psychometric properties of Mini-CEX.

METHODS

First, Delphi panel methodology was used to ensure content validity. Mini-CEX was then piloted in the dental-clerkship program, with each student assessed by at least 2 supervisors and a peer student. Subsequently, psychometric properties, acceptability, and observation time were analyzed.

RESULTS

The study was conducted between July and November 2019. Overall, 140 Mini-CEX evaluation exercises were carried out on 30 students by 84 supervisors and 56 peers. The adapted instrument was found to be unidimensional, obtaining an acceptable internal consistency (α = 0.74). As the assessor type changed, there were differences in observation time; the medians (Q1-Q3) were 10 minutes (5-15) for supervisors and 30 minutes (20-45) for peer students (P < 0.001). This difference was also observed in assessor perceptions (P < 0.001), with supervisors scoring a median of 6 (6-6.75) and peer students scoring a median of 7 (6-7). No differences were found between supervisor and peer scores.

CONCLUSION

The adapted version of Mini-CEX can objectively assess the clinical performance of dental students, achieving validity and reliability values similar to those obtained in the original instrument.