Reliability and how it is used to interpret scores.ģ.10 State and explain method of estimating reliability of test results:ģ.11 Identify and explain the factors influencing reliability.ĭefinition: Nitko (1996, p. ![]() 3.1 Explain the concept of validity and how it applies to all educationalģ.2 State and explain the four principles of validationģ.3 List, explain and differentiate between the categories of validity evidence.ģ.4 Explain the factors that influence the validity of test results.ģ.5 Explain the concept of reliability and how it relates to inconsistency inģ.6 Explain the relationship between reliability, validity and the quality ofģ.7 Explain the term “reliability co-efficient”ģ.8 Explain the meaning of observed/obtained, true and error scoresģ.9 Explain the meaning of standard error of measurement, its relationship to
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