Language testing and evaluation validity and reliability.

Language testing and evaluation validity and reliability.

• 1.
  Language Testing andEvaluation: Validity and Reliability. Name: Vadher Ankita. Paper No: ELT-2 Part-2 ,Sem-4
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  Validity Content Validity Construct Validity. CriterionValidity Concurrent Validity Predictive Validity. Face Validity
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  How to JudgeValidity of Anything? Validity it Measure What it is supposed to Measure or can be used for the purposes for which it is intended. It means any given test may be for some purpose.
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  Construct Validity It seeks agreement between a theoretical concept and a specific measuring device or procedure. It implies using the construct correctly( concept, ideas, Notions) Content Validity Criterion Validity This validity refers the connection Criterion related validity usually between the test items and the includes any validity strategies that subject related tasks. The extent to focus on the correlation of the test which the content of a test can be being validated with some well said to be sufficiently representative respected outside measure of the and comprehensive of the purpose same objectives or specifications. for which it has been design.
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  Criterion Validity Predictive validity Concurrent validity This validity is estimates the relation of It determined by correlating the result on test scores to an examinee’s future the test with another externally performance as a master or non master. recognized measure. Care needs to be For this type of validity the correlation that taken that the two measures are is computed is based on the test result and measuring similar skills and using similar the examinee's later performance and its test method. especially useful for test purposes such as selection or admission.
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  Reliability 1 Equivalency 2 Stability. 3Internal 4 Inter-Rater. 5 Intra- Rater.
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  Reliability Stability Reliability. Equivalency Reliability Call test -Retest This reliability is the extent to A Measuring device is stable it is which two items measure gives the same result when used identical concepts at an twice on the same object results identical level of difficulty. it are compared and correlated with related to the co- occurrence of the initial test to give a measure of two items. stability.
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  Reliability Internal consistency It is measuring instruments used in study. This type of reliability often help researcher Interpret data and predict the value of scores variables of the relationship among variables.
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  Thank You… Submitted To, Dr Dilip Barad Dept. of .English M.K. Bhavnagar University Bhavnagar.