2. Parallel form method.
 Two equivalent forms of the test are
formulated and administered to the same
group of students during a single time
period.

3. Split half method
 In this method a single test is divided into
two equipment halves and is used as if
they were two separate tests to estimate
reliability coefficient.

4. Improving test reliability
 Increasing the number of test items
 Making the test of average difficulty
 Scoring a test objectively
 Setting time limits for answering the test.