Asked by Katende Ludovic on Sep 26, 2024
An individual receives a T score of 73 on a test that measures empathic ability. Taking into account standard error of measurement (SEM) , what is his "true score" 68 percent of the time if test-retest reliability is .75?
A) 25 points
B) 10 points
C) 5 points
D) 2.5 points
E) None of these
Standard Error of Measurement (SEM)
The standard error of measurement (SEM) is an estimate of the variation in scores due to measurement error, indicating how repeated measures of a person on the same instrument might differ.
T Score
A type of standardized score that has been adjusted to fit a normal distribution, typically with a mean of 50 and a standard deviation of 10.
Test-Retest Reliability
The consistency of a psychological test or assessment over time, measured by administering the same test to the same subjects at two different points in time.
- Acquire knowledge on the concept of true score theory and the determination of standard error of measurement.
Learning Objectives
- Acquire knowledge on the concept of true score theory and the determination of standard error of measurement.