Hi there, I have a question regarding a data set that looks like the following: 8 repeated measurements for 3 dosage levels. However, the measurements for each dosage levels are taken on a different group of subjects. example: subject time dosage measure 11 1 1 154 11 2 1 150 : : : : 11 8 1 158 12 1 1 154 12 2 1 150 : : : : 12 8 1 158 21 1 2 138 21 3 2 130 : : : : 21 8 2 145 22 1 2 138 22 3 2 130 : : : : 22 8 2 145 31 1 3 148 31 3 3 150 : : : : 31 8 3 155 32 1 3 148 32 3 3 150 : : : : 32 8 3 155 Should I analyze this using repeated two ways anova? And what is the function to do this? Thank you. Cecilia [[alternative HTML version deleted]]