0
$\begingroup$

Is there minimum sample size for each group in 1-way ANOVA? if yes, please give a reference(s), If no, why there is not?

$\endgroup$
  • 2
    $\begingroup$ At least some software will let you run ANOVA with one observation in each group. It's just that the results are not very useful and some results are not defined. $\endgroup$ – Nick Cox Sep 22 '14 at 14:53
  • 1
    $\begingroup$ oneway ANOVA sample size and power calculations are more complex than t test calculations. Glanz gives a detailed set of methods for power and sample size calcs on the one-way ANOVA in Glantz, S. A. (2005). primer of biostatistics. McGraw-Hill Medical, New York, NY, 7th edition. $\endgroup$ – Alexis Sep 22 '14 at 17:54
1
$\begingroup$

Technically speaking, there should be two or more observations in at least one cell (treatment). I.e., if there are n cells, you can perform analysis with (n + 1) observations. Moreover, if you use Poisson regression, it's enough to have just one observation per cell.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.