Compose a 1250 words assignment on formative, summative, and confirmative evaluation: similarities and differences. Needs to be plagiarism free! Education has always been a concern of society because its impact is unquestionable and a lot of designs are being developed and tested to develop a better educational system to go even further in the learning system today. An instructional design is a systematic process in which instructional materials are designed, developed, and delivered while evaluation design is finding out what the design is capable of or what it lacks. There are three types of evaluation of instructional design, namely. formative, summative, and confirmative evaluation. These designs similarly evaluate the effectiveness of such instructional design but still vary in some degrees of each usage. Formative evaluation is more diagnosis focused. It focuses on the program while it is being developed or while the process is ongoing that provides information for improvement (Van Tiem et al., 2000, p. 157)