Which of the following things can be done to reduce measurement error?
A)Using less precise measurements
B)Using more reliable measurements
C)Using a pretest/posttest design
D)Increasing unsystematic variance

Question

Quizplus · Accepted Answer

Using more reliable measurements is the best choice to reduce measurement error. This can be done by using validated measuring instruments, using trained and consistent raters, and minimizing sources of bias in the measurement process. Using less precise measurements (A) would actually increase measurement error, as would increasing unsystematic variance (D). The pretest/posttest design (C) can help control for some sources of error, but it may not reduce measurement error if the measures themselves are not reliable.

Which of the Following Things Can Be Done to Reduce