Professor lawrence was concerned about the validity of a recently reported experiment on the effects of alcohol use. which process would best enable her to assess the reliability of these findings? naturalistic observation replication random sampling a case study

I believe the answer is: Replication

In research, replication refers to the repetition of researches that conducted in similar manner. If, a certain conclusion is derived from various repetitive researches, we can conclude that the conclusion did not arise because some sort of 'luck' or random events, which increase the validity of the result.

explanation:

may i ask what challenges?

answer; coal reserves in the u.s are far greater than petroleum reserves;