This checklist represents a Fifth Installment of the CIPP Model. The model’s first installment—actually before all 4 CIPP parts were introduced— was published more than 35 years ago and stressed the need for process as well as product evaluations. The second installment—published a year later —included context, input, process, and product evaluations and emphasized that goalsetting should be guided by context evaluation, including a needs assessment, and that program planning should be guided by input evaluation, including assessments of alternative program strategies. The third installment set the 4 types of evaluation within a systems, improvement-oriented framework. The model’s fourth installment showed how the model could and should be used for summative as well as formative evaluation. The model’s fifth installment—illustrated by this checklist—breaks out product evaluation into the above-noted four subparts in order to help assure and assess a program’s long-term viability.