Which of the following is true regarding the standard error of measurement (SEM)?
A)The SEM is a useful measure of the accuracy of individual scores.
B)The higher the SEM,the more accurate the measurements.
C)With longer periods between administrations,SEMs are likely to go down.
D)If the SEM is 1,then the observed score is the true score.

Question

Quizplus · Accepted Answer

The standard error of measurement (SEM) is a statistical measure that assesses the extent to which scores on a test or measurement are likely to be misclassified due to measurement error. A smaller SEM indicates more precise measurements, and therefore, greater accuracy. However, it is important to note that the SEM does not directly determine the accuracy of an individual score, but rather the variability of scores around an individual's "true" score. Therefore, option B is incorrect. The SEM may decrease with shorter periods between administrations, as the test-taker may retain some memory of the test and perform more consistently. Therefore, option C is incorrect. Finally, an SEM of 1 does not indicate that the observed score accurately represents the true score, as the SEM reflects the measurement error associated with the test, not the validity of the test itself. Therefore, option D is incorrect.

Which of the Following Is True Regarding the Standard Error