You are developing a new test and have enlisted two different groups of raters to give the test. You are then comparing their results. You are in the process of testing the tests _____________.
a. mean error
b. variance
c. reliability
d. validity
Question 2
In statistics ___________ is a measure of how consistent a test is over time, items, or raters.
a. validity
b. reliability
c. the mean error
d. variance