2. A pre-test and a post-test
The multiple-choice format was employed for the pre- and post-tests of this
study. The pre-test consisted of 70 sentences (35 verbs and 35 adjectives). However,
the test scores were calculated from the 40 items that the students answered the least
correctly for this indicated that these were the prepositions with which this group
of students had the most problem. These 40 items (20 verbs and 20 adjectives) were
used in the three administrations of the post-test. The data for computing internal
consistency reliability was taken from the third administration of the post-test (the
second delayed post-test), and the alpha coefficient was .92, indicating that the same
characteristics of the test were measured to a very high degree.
Procedure