The term used to describe the decrease in item validities that typically occurs during cross-validation is
A) validity detriment.
B) validity decrement.
C) validity shrinkage.
D) cross-validation devaluation.

Question

Quizplus · Accepted Answer

Validity shrinkage refers to the decrease in item validities that occurs when a prediction model is applied to new data compared to the original sample used to develop the model. This is a common phenomenon in cross-validation, where the model is developed using one subset of the data and tested on another subset. The difference in performance between the two subsets is often due to validity shrinkage, which is caused by differences in the characteristics of the two subsets.

The Term Used to Describe the Decrease in Item Validities