Dataset: Pre- and Post-Intervention Scores for Development of Pre-Analytical Competencies Through Service-Learning

This dataset contains anonymized pre- and post-intervention Likert-scale responses (11 items) from 34 second-semester medical students participating in a quasi-experimental pretest–posttest study evaluating the impact of a Service-Learning intervention on pre-analytical laboratory competencies. The dataset includes individual item scores, total scores (sum of 11 items), and paired differences. Statistical analyses performed in the associated manuscript include paired-samples t-test and Cohen’s d for related samples.