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Applied Psychometry

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Applied Psychometry

Narender Kumar Chadha

Pub. date: 2009 | Online Pub. Date: May 31, 2012 | DOI:http://dx.doi.org/10.4135/9788132108221 | Print ISBN: 9788132100782 | Online ISBN: 9788132108221 | Publisher:SAGE Publications India Pvt Ltd

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Chapter 9: Reliability

Reliability 1. What is Reliability? 2. Methods of Calculating Reliability : ( i ) Test-Retest ( ii ) Parallel Form ( iii ) Split-Half ( iv ) Method of Rational Equivalence ( v ) Cronbach Alpha 3. Factors Affecting Reliability : ( i ) Variability of Age ( ii ) Variability of Scores ( iii ) Time Interval between Testing ( iv ) Effect of Practice and Learning ( v ) Consistency in Scores ( vi ) Effect of Test Length 4. Types of Reliability Used in Some Psychological Tests 5. Importance of Reliability in Psychological Testing At the end of this chapter, you will be able to understand: 1. What is reliability and what is its significance? 2. What are the various methods of calculating reliability? 3. What are the various factors that can affect reliability? 4. How variability in age and scores affect reliability? 5. What is 6. ...

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