"As another example, many psychology experiments are run on volunteer college students. Often an experimenter gets a result from such an experiment and claims it is valid across all people, but later finds out that the result only holds for (a) people roughly 20 years old or (b) people with the skills and dedication necessary to be a college student or (c) the type of people who like to volunteer for things."

Is there any chance that this is going to happen? From my experience of reading (more social science) oriented journals it seems super rare that someone is actually interested in replicating someone else's results.