Читать книгу Medical Statistics - David Machin - Страница 69

1 Is the number of subjects involved clearly stated?

2 Are appropriate measures of location and variation used in the paper? For example, if the distribution of the data is skewed, then has the median rather the mean been quoted? Is it sensible to quote a standard deviation, or would a range or interquartile range, be better? In general do not use SD for data which have skewed distributions.

3 On graphs, are appropriate axes clearly labelled and scales indicated?

4 Do the titles adequately describe the contents of the tables and graphs?

5 Do the graphs indicate the relevant variability? For example, if the main object of the study is a within‐subject comparison, has the within‐subject variability been illustrated?

6 Does the method of display convey all the relevant information in a study? Can one assess the distribution of the data from the information given?