Which one of the following statements about internal consistency is correct?
A) Internal consistency is especially important to compare qualitative observations.
B) Internal consistency is calculated to ensure all items measure the same trait.
C) Internal consistency can only be calculated by hand.
D) Internal consistency is calculated between the two raters of the same behaviors.

Question

Quizplus · Accepted Answer

Internal consistency is a measure of how well different items on a measure of a construct are correlated with each other. It is used to ensure that all items are measuring the same trait or concept. It can be calculated using a number of techniques, including Cronbach's alpha and split-half reliability. It is not specifically related to qualitative observations or the comparison of two raters.

Which One of the Following Statements About Internal Consistency Is