In: Rhoda DA, Murray DM, Andridge RR, Pennell ML, Hade EM. Studies with staggered starts: multiple baseline designs and group-randomized trials. Am J Public Health. 2011;101(11):2164-2169. doi:10.2105/AJPH.2011.300264.
There was an error in 2 equations. On page 2166, the third sentence in the second full paragraph of the third column should read:
“Hussey and Hughes observed that if 
and 
are known, where m is the number of members per group, then estimates of the fixed effects can be obtained with a weighted least squares analysis of the cluster means.27”
On page 2167, Equation 3 should read:
 |