Consider the following two statements (A) and (R):

Assertion (A): The Kuder-Richardson technique mitigates split-half reliability issues. Reason (R): This technique evaluates reliability in tests with dichotomous items, scored as 0 or 1. Codes:

Correct option is B

While both statements are correct, the reason (R) does not directly explain why the Kuder-Richardson technique addresses split-half reliability. Instead, KR-20 and KR-21 formulas compute reliability for the entire test at once, avoiding the variability caused by splitting.
Information Booster:
1. KR-20 applies to dichotomous data (e.g., right/wrong answers).
2. KR-21 is a simplified version with assumptions about item difficulty.
3. Measures internal consistency by analyzing variance across items.
4. Avoids the limitations of traditional split-half reliability.
5. Important in psychological and educational testing.