Timeline for Paired comparison chi square
Current License: CC BY-SA 3.0
14 events
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| Aug 29, 2013 at 23:33 | history | edited | Glen_b | CC BY-SA 3.0 |
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| Aug 29, 2013 at 23:26 | comment | added | Glen_b | see updated answer | |
| Aug 29, 2013 at 23:25 | history | edited | Glen_b | CC BY-SA 3.0 |
added response to question in comments
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| Aug 29, 2013 at 17:15 | comment | added | user12257 | Hi, As you widely assumed Glen, the question was if all species were equally affected by insecticides exposure in terms of survival. Your explanation was quite clear. Nevertheless, I would like to know if there is a test which allows me to make post-hoc comparisons between the species, I have never seen a test lik this for chi-square so I wanted to know if you know some which could work. | |
| Aug 29, 2013 at 16:56 | vote | accept | user12257 | ||
| Aug 29, 2013 at 10:48 | comment | added | Glen_b | @PeterFlom Yes, I guess it was intended for the OP; I was simply adding my support to asking the question. | |
| Aug 29, 2013 at 10:36 | comment | added | Peter Flom | Oops @Glen_b I posted this question as a reply to you, I meant it as a comment to the OP | |
| Aug 29, 2013 at 7:57 | comment | added | Nick Cox |
It would be rather shocking if two people couldn't get the same chi-square test answer. For any Stata people watching: I used tabchii from SSC.
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| Aug 29, 2013 at 1:56 | history | edited | Glen_b | CC BY-SA 3.0 |
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| Aug 29, 2013 at 0:33 | history | edited | Glen_b | CC BY-SA 3.0 |
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| Aug 29, 2013 at 0:32 | comment | added | Nick Cox | If you recast the data as dead and alive, I get chi-square with 4 d.f. as 11.55 (P = 0.021). That is, a null hypothesis that the five species are equally susceptible can be rejected. But this is imputing a guess on what you want here. Certainly the inclusion of after in before requires a recasting of the data. | |
| Aug 29, 2013 at 0:32 | comment | added | Glen_b | @PeterFlom Always a good question; I made an assumption, but it might not be the right one. | |
| Aug 29, 2013 at 0:28 | comment | added | Peter Flom | What are you trying to find out? | |
| Aug 29, 2013 at 0:27 | history | answered | Glen_b | CC BY-SA 3.0 |