Final answer:
The high level of reliability can be attributed to Kevin's study on the length of the line at a local Starbucks affecting customers' enjoyment of their coffee in Malcolm's study as well.
Step-by-step explanation:
The high level of reliability can be attributed to Kevin's study on the length of the line at a local Starbucks affecting customers' enjoyment of their coffee in Malcolm's study as well. Reliability refers to how likely research results are to be replicated if the study is reproduced. In this case, the similar results obtained by both Kevin and Malcolm indicate a high level of reliability.