Statistics notes

All Statistics notes articles from the BMJ

Research Methods & Reporting: Brackets (parentheses) in formulas

Research Methods & Reporting: How to obtain the P value from a confidence interval

Research Methods & Reporting: How to obtain the confidence interval from a P value

Research Methods & Reporting: Comparisons within randomised groups can be very misleading

Research Methods & Reporting: Correlation in restricted ranges of data

Practice: Analysis of continuous data from small samples

Practice: Parametric v non-parametric methods for data analysis

Practice: Missing data

Practice: The cost of dichotomising continuous variables

Education and debate: Standard deviations and standard errors