Usually this prior knowledge would take the form of some data based estimate of either means and standard deviations or expectations of percentage differences.Īt the heart of sample size calculations is concern for the power associated with a statistically significant finding. If sample size estimates are to be anything more than an exercise in fertility they require some kind of prior knowledge about whatever it is that you are investigating.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |