Use the Reports | Schemas | Campaign | [schema name] | Columns | [Response Metric] property to add the response metrics that you want to include in your reports to the Campaign Performance or Offer Performance reporting schemas.
If you use the standard IBM®Cognos® reports or create your own custom reports that include control groups, then each response metric must have two columns in the reporting schema. One column represents the response from the control group and the other column represents the response from the target group. The value in Control Treatment Flag specifies whether the column in the view represents the control group or the target group.