This paper examines the distinctions between formative and summative evaluation and explores how quantitative, qualitative, and mixed research methods apply to each. Drawing on the perspectives of evaluation scholars Michael Q. Patton, Daniel Stufflebeam, and Michael Scriven, the paper argues that effective evaluators must understand not only the differences between evaluation types but also when and how to deploy appropriate methodologies and tools. The paper concludes by connecting these evaluation principles to real-world business monitoring, particularly in the context of customer feedback and product improvement.
Research studies are compiled, written, created, and studied constantly, with many of their written findings providing fodder for policy changes, shifts in direction, and analyzed data for discussion. Educational, business, policy, and medical studies are initiated on a daily basis, and many researchers constantly seek to discover, ascertain, or provide validity for a wide variety of hypotheses.
Formative and summative evaluations are the norm for many of these studies. A formative evaluation is one that is produced while the product or service is still in the creation stage. It usually takes place to ensure that improvements or changes to the product can be implemented before it reaches the end user. The summative evaluation, by contrast, usually takes place after the product or service has been introduced, and is used to confirm that the product or service is accomplishing its set objectives.
Both formative and summative evaluations can be conducted using different techniques, including quantitative, qualitative, and mixed research methods.
One of the overall benefits of quantitative research is that it provides firm numbers for comparison. Very few can argue with the numerical results of a quantitative study — only the discussions and conclusions drawn from those results. Results can also be generalized through mixed research methods. A qualitative study applies methodology in almost the exact opposite manner. The general benefits of conducting a qualitative study are that it provides a deeper understanding of the motivational aspects of the subjects while also allowing the researcher to generate new hypotheses from the data. Qualitative research also provides the opportunity to examine the breadth and depth of a phenomenon and to study behavior in natural environments.
Knowing which method to employ in a specific study or situation is one of the things that Michael Q. Patton states a new evaluator must know. Patton said that the evaluation situation provides the evaluator a chance to "focus an evaluation by appropriately matching the design, methods, measures...to the situation" (Patton). Daniel Stufflebeam agrees with Patton's assessment. He states that the new evaluator must know a number of different things, including "the meanings of formative and summative evaluation" (Stufflebeam).
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