I have an experiment where I have 24 units/individuals. I will be measuring the gas emissions of the group (cannot be done individually) and is therefore an average.
There will be a baseline period. Followed by a treatment period. I want to assess if the gas concentration changes in response to the treatment. However, there may be a transition where after 1 days there is little effect, 5 days there is some effect, and 20 days the effect is quite clear.
I will certainly compare the final day (where any effect will be greatest) to the baseline. But how should/could I look at that transition period within my data?
It would be much more powerful to show that emissions gradually changed, than to just say “they were lower on day 20 than on day 0”.
I feel this is often done in the pharma industry?
Many thanks, hope it’s clear!