{"title":"Development and a validation study of comprehensive prescription writing rubrics for medical students","authors":"Anupong Kantiwong, Sethapong Lertsakulbunlue","doi":"10.46542/pe.2024.241.403417","DOIUrl":null,"url":null,"abstract":"Background: Prescribing is a complex task for physicians, with many global reports of errors. This study evaluates a comprehensive rubric for medical student prescribing skills regarding validity and reliability.\nMethods: Twenty-one third-year medical students participated in three separate prescribing exams. Two pharmacology professors rated the students' prescriptions using a rubric covering ten criteria. Messick validity framework was utilised to enhance the study’s validity. Generalisability theory (G-theory) helped determine the source of variance and the optimal number of raters and test occasions.\nResults: Content validity was ensured by three experts and alignment with the Thai Medical Council criterion. The Inter-rater and test-retest reliability were acceptable. The rubric had a Cronbach's alpha 0.70 with item-test correlation, all above 0.40. G-theory indicated that 54.93% of the total variance was due to performance and 27.57% to the interaction between performance and occasions, with a minimal residual variance of 4.28%. To reach an acceptable Phi-coefficient (≥0.70), three occasions with one rater (Phi-coefficient=0.76) or two occasions with two raters (Phi-coefficient=0.72) are needed. Conversely, the Phi-coefficient was low on a single occasion.\nConclusion: The study introduces a comprehensive rubric and description of a prescription writing programme to minimise potential prescribing errors in pre-clinical years. Furthermore, more assessment opportunities enhance knowledge retention and assessment reliability.","PeriodicalId":0,"journal":{"name":"","volume":" 63","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.46542/pe.2024.241.403417","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Prescribing is a complex task for physicians, with many global reports of errors. This study evaluates a comprehensive rubric for medical student prescribing skills regarding validity and reliability.
Methods: Twenty-one third-year medical students participated in three separate prescribing exams. Two pharmacology professors rated the students' prescriptions using a rubric covering ten criteria. Messick validity framework was utilised to enhance the study’s validity. Generalisability theory (G-theory) helped determine the source of variance and the optimal number of raters and test occasions.
Results: Content validity was ensured by three experts and alignment with the Thai Medical Council criterion. The Inter-rater and test-retest reliability were acceptable. The rubric had a Cronbach's alpha 0.70 with item-test correlation, all above 0.40. G-theory indicated that 54.93% of the total variance was due to performance and 27.57% to the interaction between performance and occasions, with a minimal residual variance of 4.28%. To reach an acceptable Phi-coefficient (≥0.70), three occasions with one rater (Phi-coefficient=0.76) or two occasions with two raters (Phi-coefficient=0.72) are needed. Conversely, the Phi-coefficient was low on a single occasion.
Conclusion: The study introduces a comprehensive rubric and description of a prescription writing programme to minimise potential prescribing errors in pre-clinical years. Furthermore, more assessment opportunities enhance knowledge retention and assessment reliability.