I wonder if anyone on this forum knows how to calculate using EXCEL the statistics for "difference in differences".
I have 4 sets of groups -
each group has a mean and a standard error
I am trying to calculate if the difference between group 1 and 2 is the same or not the same (statistically) from the difference between group 3 and group 4.
I can do student t, but not sure what statistics to use in EXCEL to calculate the difference in differences.
Any help?
I have 4 sets of groups -
each group has a mean and a standard error
I am trying to calculate if the difference between group 1 and 2 is the same or not the same (statistically) from the difference between group 3 and group 4.
I can do student t, but not sure what statistics to use in EXCEL to calculate the difference in differences.
Any help?