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One variable is injuries yes/no, the other variable is rating how much in control they felt (0=none,100=total). Basically if injuries causes low levels of perceived control. I have to use a t-test, but there are so many and I really don't know which one.

@ Dason, yes it does. But it still has to be done so I would appreciate if someone could give me a helpful answer.

In SPSS, is there a way to find out if there is a siginificant relationship between symptoms (on a scale from 0-3, with 3 = the worst) and hospital stay ("yes" or "no") are related?

Can I use chi-square test of independence if one variable is nominal and the other is ordinal, or do both have to be nominal?

We are trying to create one frequency table (with frequencies or percentages) for multiple categorical variables, but whenever we do it, we always get a separate freqeuncy table for each of the variables, even if we drag all of them into the variable window simultaneously.

Hi, My question might seem pretty dumb but I'm teaching statistics to myself and never had in school or uni. I use a book and I'm currently trying to learn the chapter about two-way tables with two categorical variables. In the book, it is written that you can check if two categorical...

I never had statistics in school and I'm not in college yet so I try to teach in to myself now. That's why everything I write now could be plain wrong: - You use hypothesis tests (independent t-test, paired t-test etc) to test a claim about a population mean/population proportion or to test a...

Hi there, I'm trying to teach myself statistics from a book but I don't understand when I have to use t test and when chi squares. I tried to look it up on google but I still don't get it! To what I understood, you use BOTH for determining if there's a difference between groups and if this...

I just started teaching statistics to myself (I never had it in school but will need it when I start University). I have problems with z-scores and effect size. I think that you use a z-score if you want to know how a score compares to the mean or standard derivation. And you use the effect...