The University of Colorado is using a mixed-mode approach for follow-up surveys for the CPREP evaluation. They assumed 40 percent of interviews would be in person. Mixed-mode interviewing also is being used in the Minnesota evaluations and is planned in the Michigan evaluation. In California and Wisconsin, only telephone interviews are being conducted. In the Minnesota surveys, RTI is using computer-assisted interviewing both for telephone and in-person interviews (CATI/CAPI).(4) The California survey is a CATI survey; this was the reason given for not using in-person followup. For the Wisconsin evaluation, MAXIMUS originally had planned to do mail surveys with telephone followup, but later switched to doing all surveys by telephone.