You want to test the effect of a new drug for treating children with attention deficit disorder, but this time you want all the children to take a placebo—5, 10, 15, and 20 mg on different days. You...

You want to test the effect of a new drug for treating children with attention deficit disorder, but this time you want all the children to take a placebo—5, 10, 15, and 20 mg on different days. You know that using this procedure might result in either carryover or order effects, so you want to counterbalance the order of presentation of the five dosages. Construct the different counterbalanced order of treatment conditions using the incomplete counterbalancing technique.