Development and validation of a script concordance test to assess biosciences clinical reasoning skills: A cross-sectional study of 1st year undergraduate nursing students.

BACKGROUND

Developing evaluative measures that assess clinical reasoning remains a major challenge for nursing education. A thorough understanding of biosciences underpins much of nursing practice and is essential to allow nurses to reason effectively. A gap in clinical reasoning can lead to unintended harm. The Script Concordance test holds promise as a measure of clinical reasoning in the context of uncertainty, situations common in nursing practice. The aim of this study is to develop and validate a test for first year undergraduate nursing students that will evaluate how bioscience knowledge is used to clinically reason.

METHODS

An international team, teaching biosciences to undergraduate nurses constructed a test integrating common clinical cases with a series of related test items: diagnostic, investigative and treatment. An expert panel (n = 10) took the test and commented on authenticity/ambiguities/omissions etc. This step is crucial for validity and for scoring of the student test. The test was administered to 47 first year undergraduate nursing students from the author sites. Students rated educational aspects of the tool both quantitatively and qualitatively. Statistical and content analyses inform the findings.

FINDINGS

Results indicate that the test is reliable and valid, differentiating between experts and students. Students demonstrated an ability to identify relevant data, link this to their bioscience content and predict outcomes (mean score = 50.78 ± 8.89). However, they lacked confidence in their answers when the scenarios appeared incomplete to them.

CONCLUSION

Nursing practice is dependent on a thorough understanding of biosciences and the ability to clinically reason. Script concordance tests can be used to promote both competencies. This method of evaluation goes further than probing factual knowledge. It also explores capacities of data interpretation, critical analysis, and clinical reasoning. Evaluating bioscience knowledge and real-world situations encountered in practice is a unique strength of this test.