Education

ELIABILITY: Reli qualification is one of the qualities of a shield or whatever different measurement instruments. ladder reli cleverness means ability of the test to produce arranged results when applied more than erstwhile to a congregation of students to a lower place comparable situations such(prenominal) as corresponding age, level of education, heathenish back ground and sparing status (Rossi,P.H et al 2004). To scan whether the test is reliable or non, interpretation is done on a lower floor guided reliableness coefficiencies (see pageboy 5) which argon obtained from the application of formulae such Spearman post mold and Spearman chocolate-brown augur (Thorndike,R.M et al 1991). WAYS OF ascertain RELIABILITY running variation RELIABILITY According to Popham, W.J.(1995), test reliability can be persevere by:- Test- retest method. This method involves administering a test twice to the resembling group of students at ii different points in time. The results obtained be correlate by victimization Spearman Rank recite and Spearman brown Prophecy formulae ( utilise in this question). free-living judges method. In this method, cardinal t from each oneers on an individual basis mark the test scripts and agree it without showing each other until the task is finished. Then the dozens from the two teachers ar agree using Spearman Rank Order and Spearman Brown Prophecy formulae. uniform forms method.

The teacher constructs two tests on the same fill area, interrogation the same skill, with the same play of items and the tests are administered to the same group of students on the same solar day and the scores obtained are correlated to find the coefficient of reliability by using Spearman Rank Order and Spearman Brown Prophecy. 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). CALCULATING RELIABILITY OF THE turn up AS PER data AND FORMULAE GIVEN A sample of eight (8) students was tried and true and re- tested in...If you wish to constitute a full essay, hunting lodge it on our website: Ordercustompaper.com

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