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Apply the Spearman Brown formula (presented below) to estimate what the correlation between the two halves of a 20-item test with a split-half correlation
Apply the Spearman Brown formula (presented below) to estimate what the correlation between the two halves of a 20-item test with a split-half correlation coefficient of .69 would have been if each half had been the length of the whole test. 2r The Spearman Brown formula is: r=- 1+r Corrected split-half reliability=
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Classical Electrodynamics
Authors: John David Jackson
3rd Edition
047130932X, 978-0471309321
