Problem-based learning as a didactic strategy to develop the skill of diagnostic imaging

Authors

Keywords:

internship and residency; education, medical, graduate; problem-based learning; strategies; community medicine; education, medical

Abstract

Background: Diagnostic imaging skills in Family Medicine residents present deficiencies, which affects clinical competence.

Objective: To evaluate the effectiveness of a didactic strategy centered on problem-based learning for the development of diagnostic imaging skills in Family Medicine residents at the Juana Naranjo León University Polyclinic.

Methods: A quasi-experimental study with an interrupted time-series design was conducted in 28 Family Medicine residents at the Juana Naranjo León University Polyclinic in Sancti Spíritus, Cuba. The ACTIVE DIAGNOSIS strategy was implemented over 42 weeks in four phases (diagnosis, immersion, application, consolidation) using a blended learning format (120 hours, 25 clinical cases). Three-dimensional assessment (cognitive, procedural, affective-motivational) used instruments validated by 15 experts (agreement 0.82; content validity 0.78). Theoretical methods (analytical-synthetic, systemic-structural), empirical methods (observation, surveys, focus group, portfolios), and statistical methods (paired-samples t-tests, repeated-measures ANOVA, Wilcoxon, Kruskal-Wallis, Pearson correlations, sensitivity analysis) were employed.

Results: Improvements (p<0.001) were observed in all dimensions. Cognitive ability increased from 48.3 to 82.4 points (t(27)=18.45, d=2.34); 78.6% of residents reached an advanced level in procedural skills (Wilcoxon Z=4.68); and self-efficacy grew from 2.1 to 4.3. Critical self-reflection was developed by 85.7%. A strong correlation was found between procedural skill and metacognition (r=0.74), and 71.4% applied the protocols in clinical practice. Sensitivity analysis confirmed the robustness of the findings.

Conclusions: The didactic strategy demonstrated high effectiveness for developing diagnostic imaging skills, thereby favoring meaningful and contextualized learning in clinical case resolution.

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Author Biographies

Miguel Angel Amaró Garrido, Universidad de Ciencias Médicas de Sancti Spíritus. Sancti Spíritus. Cuba

There are no conflicts of interest.

Carlos Lázaro Jiménez Puerto, University of Sancti Spíritus "José Martí Pérez"

There are no conflicts of interest.

Manuel Horta Sánchez , Universidad de Sancti Spíritus José Martí Pérez. Sancti Spíritus. Cuba.

There are no conflicts of interest.

Eliecer González Valdéz, Universidad de Ciencias Médicas de Sancti Spíritus. Sancti Spíritus. Cuba

There are no conflicts of interest.

Jim Alex González Consuegra, Universidad de Ciencias Médicas de Sancti Spíritus. Sancti Spíritus. Cuba

There are no conflicts of interest.

Tatiana Hernández González, Universidad de Ciencias Médicas de Sancti Spíritus. Sancti Spíritus. Cuba

There are no conflicts of interest.

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Published

2026-05-15

How to Cite

1.
Amaró Garrido MA, Jiménez Puerto CL, Horta Sánchez M, González Valdéz E, González Consuegra JA, Hernández González T. Problem-based learning as a didactic strategy to develop the skill of diagnostic imaging. EDUMEC [Internet]. 2026 May 15 [cited 2026 May 17];18(1):e3286. Available from: https://revedumecentro.sld.cu/index.php/edumc/article/view/3286

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Section

ARTÍCULO ORIGINAL