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Stats: t-tests
Hi,
Would I be able to perform a two-sample paired t-test on either of these data? http://users.ox.ac.uk/~spet1487/untitled.bmp
The top graph shows the perception of 2 groups about something before (left graph) and after (right graph) experiencing it. The bottom graph shows their before-and-after perceptions of another factor.
Apparently in doing a t-test you're assuming that there's a normal distribution - is this close enough? If not, what other statistical techniques would you recommend I could do, bar correlation/regression which I've already covered.
Many thanks.
Would I be able to perform a two-sample paired t-test on either of these data? http://users.ox.ac.uk/~spet1487/untitled.bmp
The top graph shows the perception of 2 groups about something before (left graph) and after (right graph) experiencing it. The bottom graph shows their before-and-after perceptions of another factor.
Apparently in doing a t-test you're assuming that there's a normal distribution - is this close enough? If not, what other statistical techniques would you recommend I could do, bar correlation/regression which I've already covered.
Many thanks.
*Bump* 
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