question archive What statistical test do I run when comparing the effectiveness of four independent variables in consideration of a pre-test and post-test? Would I run a multiple regression test? In other words, I have four independent variables that are intervention based and a pre-test and post-test to decide which intervention is the most effective
What statistical test do I run when comparing the effectiveness of four independent variables in consideration of a pre-test and post-test? Would I run a multiple regression test? In other words, I have four independent variables that are intervention based and a pre-test and post-test to decide which intervention is the most effective
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What statistical test do I run when comparing the effectiveness of four independent variables in consideration of a pre-test and post-test? Would I run a multiple regression test?
In other words, I have four independent variables that are intervention based and a pre-test and post-test to decide which intervention is the most effective.
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For comparing two sets of samples which are related we can use paired t test. Normally pre test and post test datas are compared using paired t test. But it cannot be used gor four samples. Multiple regression analysis can be used to compare four independent samples. But the results effectiveness will depend on the accuracy of the test
Which statistical analysis to choose depends on the type of your data and the distribution of the data ( Normal distribution or not ).In case of normal distribution you can use ANOVA but in case of non-normal distribution you must use non-parametric tests ( Kruskal Walis test ). So Kruskal Walis test in a good option
