Which of the following is FALSE?
A) While the level of measurement is not overly important from a statistical point of view, the level of measurement is crucial for interpretation of results.
B) A halo effect occurs when there is carryover from one judgment to another in the scaling procedure.
C) Item analysis is a procedure whereby each test item is evaluated to determine whether that item effectively discriminates among subjects and therefore should be included in the final version of the instrument.
D) By establishing the reliability of a scale, a researcher also establishes its validity.
E) The validity of a scale is always an inference.

Question

Quizplus · Accepted Answer

Establishing the reliability of a scale does not automatically establish its validity. Reliability refers to the consistency of a measure, while validity refers to the accuracy of a measure, i.e., whether it measures what it is supposed to measure. A scale can be reliable without being valid.

Which of the Following Is FALSE