Final answer:
Interitem consistency is a measure of internal reliability that assesses the correlation between different survey items measuring the same thing.
Step-by-step explanation:
Internal reliability is a measure of a study's consistency and considers how likely results are to be replicated if the study is reproduced. One measure of internal reliability is interitem consistency, which assesses the degree to which different items on a survey that measure the same thing correlate with one another. It helps determine if the items in a survey are consistently measuring the same construct or concept.