I want to compare effect of three different treatments on animal weight for 14 weeks. What statistical test I can use to compare the effect of treatment with each other.
Thank You Paul
I recently tried two way ANOVA for it. Do you (or anyone else reading it) think it is ok to use two way ANOVA with this data. Variables are treatment and time.
I am not quite sure if you want to test the effect of weeks on animal weight. If you only want to test the difference between treatment a repeated measures ANOVA would be more appropriate, including time as the error term. And make sure to do pretests for normality of data and especially homoscedastity!
For further information this site could help you a lot i guess:
https://statistics.laerd.com/statistical-guides/repeated-measures-anova-statistical-guide.php
With the results you can argue about the treatment effect on animal weight, if that is your research interest.
Hope that helped a bit? Feel free to ask further questions!
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