How reliable and valid is the BASI test?
The BASI test was shown to be both reliable and valid. The reliability of the test was demonstrated based on the stability of the BASI scores across items within a test, across different forms of the test, and across repeat administrations of the test. The BASI test was shown to have content validity because the items represent the achievement areas that the test was designed to measure. Curriculum experts who reviewed the test concurred that the BASI test items matched the achievement areas. Construct validity was demonstrated based on how well the BASI test correlated with other leading achievement tests.
