Hi!
I'm conducting analyses on my MSc data set, and am a little confused about how to think about my data in terms of statistical tests.
I have a series of data consisting of multiple dependent variables from 2 different sites. [Most of these dependent variables, though collected at each site, will not be compared together in the same tests since they're independent of each other and were collected randomly; for those that will need need to be compared together (such as a set of morphometrics taken from individuals), I'll be looking into multivariate stats.]
At each site, data were collected in a number of years (ex. site 1: 2007, '08, '09, '10; site 2: 1997, '98, '99).
I've been reading extensively about ANOVAs, since I want to compare the data between the 2 sites. However, I don't want any results to be confounded by the differences in years the data were collected.
I think that a 2-Way ANOVA is inappropriate, since each site was not sampled for the same number of years, nor in the same years.
Assuming the data meet the assumptions, can I perform a 1-way nested ANOVA with one dependent variable, such that the Main factor is Site (a fixed factor), and Year nested within Site (with year being a random factor)? Or would this be more suited to something else entirely?
Thanks for any suggestions you might be able to provide!
I'm conducting analyses on my MSc data set, and am a little confused about how to think about my data in terms of statistical tests.
I have a series of data consisting of multiple dependent variables from 2 different sites. [Most of these dependent variables, though collected at each site, will not be compared together in the same tests since they're independent of each other and were collected randomly; for those that will need need to be compared together (such as a set of morphometrics taken from individuals), I'll be looking into multivariate stats.]
At each site, data were collected in a number of years (ex. site 1: 2007, '08, '09, '10; site 2: 1997, '98, '99).
I've been reading extensively about ANOVAs, since I want to compare the data between the 2 sites. However, I don't want any results to be confounded by the differences in years the data were collected.
I think that a 2-Way ANOVA is inappropriate, since each site was not sampled for the same number of years, nor in the same years.
Assuming the data meet the assumptions, can I perform a 1-way nested ANOVA with one dependent variable, such that the Main factor is Site (a fixed factor), and Year nested within Site (with year being a random factor)? Or would this be more suited to something else entirely?
Thanks for any suggestions you might be able to provide!