He stresses on his scientific deduction of the evaluation typology as the model framework and establishes it with appropriate examples.
Evaluation is invaluable for the functional prospect of any program. Deducing an apt evaluation system has direct impact on the success rate of a process. The studies of Chen as well as Worthen and Sanders focus on the different approaches to evaluation both on the conceptual and functional level. But the researchers have discussed the topic from the perspectives of their individual understanding and findings. Chen goes into an in depth analysis of the evaluation system that involves a study of how it works in the program, its role in defining and affecting the program and its effectiveness. Chen seems to dissect the evaluation process on an operational level. But Worthen and Sanders emphasize the theoretical, philosophical and psychological aspects of evaluation. Their study covers a wider range of the meaning and conceptual basis of evaluation and how it can be implemented accordingly.
In discussing evaluation Chen has kept his focus strictly on the key factor of evaluation which is to determine the efficacy of a particular program and the success of its outcome or end result. He criticizes the analytical interpretations of both Scriven and Stake regarding the use and purpose of evaluation. Chen attempts to take an objective, data-based and technical approach to the analysis of evaluation. His aim seems to formulate basic scientific criteria of a typology that could be applied to different situations. He holds that the four categories of evaluation, process-improvement, process-assessment, outcome-improvement and outcome assessment, are at the basis of judging any situation. Chen elaborates on these categories defining their inter-relationship and inter-dependency through real-life examples. His main purpose is to emphasize the usability of the evaluation process in a competitive atmosphere.
Worthen and Sanders provide a ...Show more