Final answer:
Reliability refers to the consistency of results in a study and determines if the results can be replicated. It is when the same results are produced given the same circumstances.
Step-by-step explanation:
Reliability refers to the consistency of results in a study. It is when the same results are produced given the same circumstances. Researchers use reliability to determine if the results of a study can be replicated if the study is repeated. For example, if an experiment is conducted multiple times and produces the same results each time, it increases the reliability of the study.