Item difficulty and discrimination explained
Two important statistics given in the SmarterMarks teacher reports are difficulty and discrimination. In this video, we explain the meaning of these statistics and how teachers can improve their assessments using them.
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The Definition of Item Difficulty
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Twenty-Seven Percent: The Index of Discrimination
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Item Analysis Part 4: Calculating Item Discrimination
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CTT vs. IRT: What is the Difference?
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Choosing a Statistical Test
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Item Analysis Part 2: Item Difficulty
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7 Numerical Reasoning Test Tips, Tricks & Questions!
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Putting it All Together: Using Distractor Analysis
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ITEM ANALYSIS AND RELIABILITY TEST
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Analyzing Likert Type Survey Items Using IRT (IRTPro)
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Item Analysis Part 5: Interpreting the Discrimination Index
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Do Pumps Create Pressure or Flow?
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Standard Scores
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Classical Test Theory. Part 3 (VE). Five Assumptions
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If You Have A Bad Memory, I’ll Help You Fix It In 28 Minutes
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A Conceptual Introduction to Item Response Theory: Part 4. Understanding Item Parameters
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Regression: Crash Course Statistics #32
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An Introduction to Item Analysis - Number Everywhere!
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Forms of Validity in Research and Statistics
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