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Section 3: Data Analysis  > Chapter 11: Using Statistics in Evaluation

Chapter 11

Using Statistics in Evaluation

George R. Mussoline

In This Chapter

This chapter explores the basic statistical analysis that can be conducted to interpret the data collected from the evaluation program. Upon completion of this chapter, you will be able to

  • explain the importance of using statistics in analyzing data
  • identify the appropriate statistics to analyze the data
  • interpret the statistics to have a better understanding of the data set
  • apply the steps to calculate the statistics to interpret the evaluation program data

The Importance of Using Statistics in Analyzing Data

Typically, data collected from an evaluation program are the result of a survey, exam, or assessment. There are other methods to collect the data; however, the end result is usually the compilation of responses to questions. These responses could be the result of the participants’ reaction to how much they agree (for example, on a scale of 1 [completely disagree] to 5 [completely agree]) with a survey question; the number of times an answer choice was selected on a multiple-choice test question; or the result of an evaluator’s observation of how well a specific task was performed (for example, on a scale of 1 [incomplete/incorrect] to 5 [complete/correct]). No matter what the collection method, the end result is data that can be organized,....


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