Psychometric Properties of Psychological Assessment Measures

In: Social Issues

Submitted By Rochelle25
Words 6499
Pages 26
Assignment 02: Psychometric properties of psychological assessment measures

LIST OF CONTENT PAGES

1. INTRODUCTION 3

2. STEPS IN DEVELOPING A PSYCHOLOGICAL MEASURE 3

1. Planning phase 3

1. The aim of the measure 3

2. Defining the content of measure 4

3. The test plan 4

2. Item writing 5

1. Writing the items 5

2. Reviewing the items 5

3. Assembling and pre-testing the experimental version of the measure 6

1. Arranging the items 6

2. Finalizing the length 6

3. Answer protocols 6

4. Developing administration instructions 6

5. Pre-testing the experimental version of the measure 6

4. Item analysis phase 7

1. Item difficulty (p) 7

2. Discrimination power 7

3. Preliminary investigation into item bias 8

5. Revising and standardizing the final version of the measure 8

6. Technical evaluation and establishing norms 8

1. Issues related to the reliability of a psychological measure 8

1. Definition 8

2. Measurement error 8

3. The reliability coefficient 9

4. Standard error of measurement 9

5. Types of reliability 10

2.6.1.5.1. Reliability measures of stability 10

- Test-retest reliability

- Alternate-form reliability

2.6.1.5.2. Reliability measures of internal consistency 11

- Split-half reliability

- Kuder-Richardson and coefficient Alpha reliability

- Inter-scorer reliability

2.6.2. Issues…...

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