If a test that has reliability r is lengthened by a factor n (n ( 1), the
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If the reliability is r0.6, the equation becomes
(a) Find R(1).
(b) Find R(2); that is, find R when the test length is doubled.
(c) What percent improvement is there in the reliability when the test length is doubled?
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Related Book For
Mathematical Applications for the Management Life and Social Sciences
ISBN: 978-1305108042
11th edition
Authors: Ronald J. Harshbarger, James J. Reynolds
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