what is lmer in r why is group effect a variable if a single group is in a table of subjects and measurements what is true value when a group effect occurs how do I find the true value of group effect in r? how do you find the true value of s2 how to find the true value of s2 how to find out the true number of a given group in r how do you find group effect in r what is the true value of s2 how to find true value of s2 what is the true value for s2 in r if there is a single group effect group effect definition what is the value of the group effect how are group effects determined how to find the difference between s1 and s2 what is the true value of s2 in an equation? how to find the true value of the table in r when you construct a table that includes a single group of measurements, the true value of the data is the