Evaluation of evidence-based methods used to teach nursing students to critically appraise evidence.

This study evaluated whether students can learn to critically appraise a scientific article through evidence-based teaching methods. The course trains students in three steps of evidence-based practice--formulating a question, searching the evidence, and critically appraising the evidence. We gave the students two scientific articles. The articles were divided into sections, and 1 to 2 days were spent on each section. Every day had the same structure: a brief lecture on the relevant part of the article, group work, and interactive plenary discussions. At the end of the course, the students had a group examination in which they critically appraised a new scientific article. Most students reported that having learned steps one, two, and three involved in evidence-based practice was useful in critically appraising a scientific article. The results from the examination supported this. Knowledge about evidence-based practice can increase students' critical attitudes toward the evidence and their own practice.