A person's observed response pattern on any measurement scale is a combination of true score and error. In the context of this equation, "error" refers to:
A) random error
B) systematic error
C) sampling error
D) combination of A and B
E) combination of A, B, and C
F) none of the above

Question

Quizplus · Accepted Answer

Error in the context of measurement scales includes both random error and systematic error. Random error is the unpredictable variation that affects measurement in inconsistent ways, while systematic error is a consistent, predictable error that affects all measurements in the same way. Sampling error, while relevant in the context of research and statistics, is not typically considered part of the error in an individual's observed response pattern on a measurement scale.

A Person's Observed Response Pattern on Any Measurement Scale Is