The kind of reliability evidence obtained by a single test administration followed by calculation from two halves of the test is called:
The kind of reliability evidence obtained by a single test administration followed by calculation from two halves of the test is called:
Options:
(a) split-half reliability
(b) test-retest reliability
(c) alternate forms reliability
(d) stability reliability
✅ Correct Option: (a) split-half reliability
Explanation (200+ words):
Split-half reliability assesses the internal consistency of a test. The test is divided into two halves (e.g., odd vs. even items), and the correlation between the halves is calculated. High correlation indicates that the test consistently measures the same construct. This method allows reliability assessment with a single administration, making it practical for classroom and research settings. Test-retest reliability requires multiple administrations; alternate forms reliability compares different versions of the same test. Split-half reliability is widely used in PPSC measurement and evaluation topics.
10 Related Facts:
Measures internal consistency Single administration method Test is split (odd/even) Correlation = reliability Quick and practical Alternative: Cronbach’s alpha Different from test-retest Ensures measurement stability Common in psychometric tests Frequently asked in exams