Comparing two or more means: One-Way ANOVA

- The independent T-test that we covered in the last movie…allows you to compare the means of two separate groups.…But if you have more than two separate groups then…you don't really want to use multiple T-tests even…though I mentioned that's a possibility.…For instance, if you had three groups you could compare…group one and two, and then one and three, and then…two and three, but you don't want to do that because…that elevates the possibility of getting a false positive or…what's called a "Type-one Error" somewhere in your results.…Instead you want to do a one way analysis of variance,…which allows you to see whether there's any difference…between the means of several groups all at once.…

Let's do this by going up to analyze and go to Compare Means…again, but instead of using the Independence Samples T-Test…we're gonna come down to the bottom to the One-Way ANOVA,…which is for analysis of variance.…There we can pick several outcome variables at once,…if we want to.…I'm gonna pick just one.…I'm gonna do job satisfaction, I'll put that in right there.…