Question

What are test-retest reliabiltiy and how does it diffre from the reliability of split halves. Use an examples to discuss.

Answer 1

Test-retest reliability refers to the degree to which a test or measure managed at one time is corresponded with a similar test or measure managed to similar individuals at some other time. it differ from the split half reliability as split-half reliability is , a test for a solitary learning zone is part into two sections and afterward the two sections given to one gathering of students in the meantime. The scores from the two sections of the test are correlated . In split half we have two section while in test retest we repeat the same test after a period of time . Test retest is the simplest method to test stability and reliability . It also measure consistency
Test-Retest Reliability Example:

Keeping in mind the end goal to have a clearer comprehension of test-retest reliability it is imperative to give an illustration. scientist built up a proportion of dejection. The specialist directed the dejection measure to a gathering of 30 people at two unique occasions. The second time was 3 months after the fact than the first run through. The scientist found that there was a .85 relationship coefficient between scores on the measure for the two times. The scientist presumed this was confirmation of high test-retest reliability