[Question] What kind of statistical test should I use when comparing across different treatment groups?
Hello! Basically I'm trying to figure out what kind of statistical test I should do based on the observations I made.
Essentially, my study was looking at 4 different treatments; a control, as well as a low, medium, and high concentration of algae. The purpose was to see if Daphnia hopping frequency changed as concentration increases. More specifically, to see if it is getting slower as concentration increases. Each treatment had 10 individuals measured.
I'm kind of at a loss in terms of where I should even start? In my head it doesn't make sense to do an ANOVA (i think), because from what I understand that's like comparing each treatment against a baseline. But what I want is to have a statistical test tell me whether or not there's significant slowing over time. So I think that would be a linear regression...?
Sorry if this question is easy to answer, I genuinely have forgotten any stats I took in the lower years so choosing a test is like digging through a bucket of marbles. Thank you!