WHAT IS VALIDITY?
The degree to which a test measures what is supposed to be measured. The quality of a test depends on its validity. It is the most central and essential quality in the development, interpretation, and use of educational measures. The most important quality of good measuring assessment refers to the degree to which a test measures what it intends to measure.
Mathematics test is administered twice to a group of first-year high school students. The answer of Student A to Item 7 “How many meters are there in 9 kilometers?” is 9,000 meters and in the second administration, his answer is still the same, 9,000 meters to Item 7. Hence, the student’s answer is valid because there is the truthfulness of his answer (Calmorin, 2004)
Asaad, Abubakar S. (2004). Measurement and evaluation concepts and application (third edition). 856 Mecañor Reyes St., Sampaloc, Manila. Rex Bookstore Inc.
Calmorin, L. (2004). Measurement and evaluation, 3rd ed. Mandaluyong City: National Bookstore, Inc.
Raagas, Ester L. (2010). Measurement (assessment) and education concept and application (third edition).Karsuagan, Cagayan De Oro City.