Which scale construction method guarantees that all scale items correlate positively with each other and also with the total score for the scale?
A) empirical keying
B) equal-appearing intervals
C) rational scale construction
D) expert rankings

Question

Quizplus · Accepted Answer

Rational scale construction involves creating items based on a theoretical understanding of the construct being measured, ensuring that all items are logically or theoretically related to the construct and to each other. This method aims to guarantee that items correlate positively with each other and with the total scale score, as they are all designed to measure the same underlying concept.

Which Scale Construction Method Guarantees That All Scale Items Correlate