Summary
Contents
Subject index
Applied Psychometry is designed as a core textbook on practice of psychometry for undergraduate and post-graduate students of psychology and human resource management. It will help the students in their study of the following papers: B.A. Program Psychology (Core): Psychological Assessment B.A. Honors Psychology (Core): Psychology: Psychometry or Psychological Assessment 1 and 2 M.A. Psychology: Psychological Assessment 1 and 2 Human Resource Management: Recruitment and Selection, Psychological Assessment
Item Analysis
Item Analysis
Learning Objectives
After reading this chapter, you will be able to understand:
- What is item analysis?
- What are the steps involved in item analysis?
- What is item discrimination and how to calculate it?
- What is item difficulty and what are various methods to calculate item difficulty?
- What is item validity?
- How to use Biserial and Point-Biserial Method to calculate item validity?
Introduction: Item Analysis
The effectiveness and usefulness of any test depends upon the qualities of the items that are included in it. The score of the test is obtained as a result of its validity, reliability and the intercorrelation between two items. Hence, to make ...
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