Chapter 5: Classical Item Analysis
Point-Biserial Correlation Coefficient
Making a More Attractive Report
The Next Step: Restructuring the Data Set
Displaying the Mean Score of the Students Who Chose Each of the Multiple Choices
Combining the Mean Score per Answer Choice with Frequency Counts
Computing the Proportion Correct by Quartile
Combining All the Item Statistics in a Single Table
Interpreting the Item Statistics
Introduction
This chapter investigates some traditional methods of determining how well items are performing on a multiple-choice (or true/false) test. A later chapter covers advances in item response theory.
Point-Biserial Correlation Coefficient
One of the most popular methods for determining how well ...
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