Given below are two statements:
Statement I: All valid tests are reliable but all reliable tests are not valid
Statement II: Split-half method is used to determine reliability of a test
In the light of the above statements, choose the most appropriate answer from the options given below:

Correct option is A

The correct answer is (a), Both Statement I and Statement II are correct.
Statement I: "All valid tests are reliable but all reliable tests are not valid." This statement is correct. Validity refers to the degree to which a test measures what it claims to measure. For a test to be valid, it must be reliable, meaning it should produce consistent results under consistent conditions. However, reliability alone does not ensure validity. A test can consistently measure something (reliability) but may not be measuring what it is supposed to measure (lack of validity).
Statement II: "Split-half method is used to determine reliability of a test." This statement is also correct. The split-half method is a way of assessing the internal consistency reliability of a test. It involves dividing the test into two parts (e.g., even and odd items) and correlating the scores from these two halves. A high correlation between the two halves indicates high reliability. This method is one of several used to estimate the reliability of a test.