which statistical test do i use?
显示 更早的评论
i have undergone an experiment and do not know which test to use. i want to see if there is a relationship between age, gender and height with grip strength.
2 个评论
dpb
2015-4-15
Backwards...design and run the experiment after you develop the null hypothesis and decide upon the appropriate test statistic. Then the experiment will be able to produce data suitable for that test.
Shanise Bolat
2015-4-15
采纳的回答
Star Strider
2015-4-15
0 个投票
Doing a study without a statistical design first will almost guarantee a useless result. Please, in the future, give some thought to how you will analyse your data before you do the study! At the very least, you will determine how many observations are needed in order to produce a statistically valid result.
First go to the literature in PubMed to see what previous research has been done and the statistical techniques others have used to analyse their data. (This is not a new problem.)
Second, plot grip strength individually against age, gender, and height. This will give you some idea of how the data are related (linear or nonlinear).
Third, as a preliminary exploration, I would use the regress function. It should provide you with the basic information you need.
Fourth, use the most appropriate statistical techniques in the published literature (that you have discovered in your PubMed search) to complete the analysis of your data. You will also want to compare your results to those.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Design of Experiments (DOE) 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
