Mathematics · Educational Statistics
A 100-item objective test has a reliability coefficient of 0.60. If the number of items in the test is reduced to half (50 items), using Spearman-Brown prophecy formula, what will be the new reliability coefficient?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.30
- 20.28
- 30.26
- 40.43✓
Correct answer
0.43
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