Evaluations are divided into two broad categories:
1. FORMATIVE EVALUATION
Sometimes refered to as internal evaluation is a method of judging the worth of a project or programme while the project/ programme is in progress (Continual improvement). Helps the evaluators and project managers find out how well goals and objectives are being met. The main purpose is to identify deficiecnies resulting in the instigation of corrective measure hence ensuring that the project achieves its milestones and eventualy the targets. Employs more of qualitative methods of inquiry.
Examples where it can be applied are:
Questions that Formative Evaluation seeks to answer are:
2. SUMMATIVE EVALUATION
Takes place following project implementation (summation). Sometimes refered to as external, it is associated with more objective and quantitative methods with the focus being on the outcome. Some of the instruments used to collect the data are Questionnaires, Surveys, Interviews, Observations and Testings among others. Methodology used to gather data ought to be specified, carefully designed and carefully executed to guarantee accurate and valid data.
Can be applied on virtually all programs such as Health programs, Environmental programs, Educational programs, Humanitarian programs among others where the program managers and evaluators seek to find out their impact or whether their objecctives materilaised.
Examples of questions which summative evaluation seeks to answer are: