Been running around in circles with this for a while. I am trying to figure what sort of design I have and how to go about analyzing it. Any help would be great. Details are below.
Sample Date, 3 levels, fixed
Field, 2 levels, assumed to be random from a larger population.
For each sample date at each Field 3, randomly selected corn plants were harvested and analyzed for the response variable.
This was repeated again a second year, using the same fields and same sample dates (just one year later).
Like to know what the difference (if any) is between sampling times and field has a significant effect.
Assuming this is some sort of mixed model split plot design, but having a hard time determining the experimental units and structure.
Please help.
Sample Date, 3 levels, fixed
Field, 2 levels, assumed to be random from a larger population.
For each sample date at each Field 3, randomly selected corn plants were harvested and analyzed for the response variable.
This was repeated again a second year, using the same fields and same sample dates (just one year later).
Like to know what the difference (if any) is between sampling times and field has a significant effect.
Assuming this is some sort of mixed model split plot design, but having a hard time determining the experimental units and structure.
Please help.