Education

ELIABILITY: Reli qualification is one of the qualities of a studyify or some(prenominal) other measurement instruments. Test reli great power means ability of the test to produce consistent results when applied more than once to a group of students under comparable situations such as corresponding age, level of education, cultural back ground and frugal status (Rossi,P.H et al 2004). To understand whether the test is reliable or not, interpretation is done under guided reliability coefficiencies (see varlet 5) which argon obtained from the application of formulae such Spearman post revise and Spearman chocolate-brown harbinger (Thorndike,R.M et al 1991). WAYS OF DETERMINING RELIABILITY running contact RELIABILITY According to Popham, W.J.(1995), test reliability can be obstinate by:- Test- retest method. This method involves administering a test doubly to the similar group of students at ii different points in time. The results obtained be correlated by using Spearman ramble Order and Spearman brownness Prophecy formulae (used in this question). Independent judges method. In this method, devil t from each oneers independently mark the test scripts and score it without showing each other until the task is finished. indeed the scores from the two teachers ar correlated using Spearman Rank Order and Spearman Brown Prophecy formulae. Equivalent forms method.

The teacher constructs two tests on the similar fill area, testing the same skill, with the same number of items and the tests are administered to the same group of students on the same day and the scores obt ained are correlated to find the coefficie! nt of reliability by using Spearman Rank Order and Spearman Brown Prophecy. some other formulae or methods that can be used to calculate the test reliability from which the interpretation on whether the test was reliable or not are Kuder Richardsons 20 and 21 (K R20 and K R21) (TIE 2007). figure RELIABILITY OF THE TEST AS PER data AND FORMULAE GIVEN A sample of eight (8) students was tested and re- tested in...If you wish to scram a full essay, order it on our website: BestEssayCheap.com

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