In order to counteract practice effects, __________ are used.
a. two equivalent forms of a test
b. two different teachers administer the test
c. pretests and a posttests
d. coefficients of stability
Question 2
When using __________ in split-half reliability, two statistics are calculated for each item, including the proportion of individuals who answered correctly and the point-biserial correlation between the item and total test score.
a. interrater reliability
b. matched random subsets
c. the odd-even method
d. alpha