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Naturliga antal förbättrar förmågan att tolka testresultat
Engelsk titel: Natural frequencies improved diagnostic inference among medical students in Sweden Läs online Författare: Von Schreeb, Sebastian ; Merlo, Juan ; Psouni, Elia Språk: Swe Antal referenser: 12 Dokumenttyp: Artikel UI-nummer: 18040240

Tidskrift

Läkartidningen 2018;115(12)550-2 ISSN 0023-7205 E-ISSN 1652-7518 KIBs bestånd av denna tidskrift Denna tidskrift är expertgranskad (Peer-Reviewed)

Sammanfattning

The ability to draw statistical inferences from test results may be generally limited among physicians. A new way of presenting statistics, called natural frequencies, has been shown to improve this ability. The current study is the first to investigate this effect in Sweden, involving senior medical students. An intra-individual cross-over design was used in which participants answered a statistical inference task presented with natural frequencies and another with percentages, which has been the customary format. A total of 74% made a correct inference on the natural frequencies task, as compared to 54% on the percentages task, with an odds ratio of 3.2, p = 0.002, 95% CI 1.52-6.81. The findings indicate that the effect of using natural frequencies arises also in a Swedish context.