Aresearcher has conducted a study on depression using a sample of college freshmen and is concerned that the results of the study may not accurately depict the depression of college seniors. the researcher's concern can be described as a concern about the of the study results.

The researcher's concern can be described as a concern about the generalizabilty of the study. The generalizabilty of the study means that the study, the research findings and conclusions can be extended from a study conducted on a sample population (in this case a sample of college freshmen) to the population at large (in this case college seniors). 

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