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| Noether (1987) gives two formulae related to the classic formula for powering an unpaired t-test but applied to two commonly used nonparametric tests. | Noether (1987) gives various formulae related to the classic formula for powering a one sample t-test but applied to various commonly used nonparametric tests. One of these (Sign test) together with the one-sample t-test is computed using this [attachment:onesamp_pow.xls | spreadsheet.]] Other nonparametic tests where the formula have inputs which are not commonly given in research papers (e.g. numbers of concordant/discordant pairs, the odds of a positive difference). For this reason they are not computed in the spreadsheet. |
Formulae for power analyses for one-sample t and sign tests
Noether (1987) gives various formulae related to the classic formula for powering a one sample t-test but applied to various commonly used nonparametric tests. One of these (Sign test) together with the one-sample t-test is computed using this [attachment:onesamp_pow.xls | spreadsheet.]] Other nonparametic tests where the formula have inputs which are not commonly given in research papers (e.g. numbers of concordant/discordant pairs, the odds of a positive difference). For this reason they are not computed in the spreadsheet.
Reference
Noether GE (1987) Sample size determination for some common nonparametric tests Journal of the American Statistical Association 82(398) 645-647.