Dr. Grant is creating a new measure of shyness, and she decides to include more than one item in her scale. She believes that using multiple items will lead to a more reliable measure. Dr. Grant is following which principle of measurement?
A) multitrait assessment
B) content validation
C) aggregation
D) construct validation

Question

Quizplus · Accepted Answer

Aggregation refers to the principle of combining multiple items or observations to create a more reliable and stable measure of a construct, such as shyness, which is what Dr. Grant is doing by including more than one item in her scale.

Dr Grant Is Creating a New Measure of Shyness, and She