CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -The correlation between scores obtained on two halves of a single test yields information about the test’s: Reliability (Reliability is a measure of the ability to replicate the test in subsequent administrations. Reliability is often determined by a correlation coefficient.

Detailed explanation-2: -Test-retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals. The scores from Time 1 and Time 2 can then be correlated in order to evaluate the test for stability over time.

Detailed explanation-3: -B Split-half reliability is determined by assessing the degree of relationship between scores on the same test, administered on two different occasions.

Detailed explanation-4: -Three important methods for estimating test reliability are (1) method of parallel forms, (2) test-retest method, (3) split-half method. pointed out that the first two methods do not very often find their application. gap and short gap both give rise to serious bias in the estimation.