Answer:
Replication
Explanation:
Replicating a study means that other researchers are able to replicate the procedure of a published study and find similar or different results. Replication is very important in science. It can act as a filter for the community itself, as a researcher's field colleagues can ascertain whether the effect reported in a study is reproducible, generalizable, or limited. Based on this, we can conclude that if Dr. Ambra is skeptical about the results of a sleep deprivation survey, the best she can do is to replicate the research and prove whether the results are reliable or not.
