Dr. Barnes is interested in the sexual behavior of middle-aged adults. She goes to a large corporation and collects data on all clerical workers who meet this criterion. Dr. Barnes calls her study "The Sexual Behavior of Middle-Aged American Workers."
Dr. Barnes' study can be criticized on the grounds that .

the findings are not based on a representative sample.

Explanation:

Dr. Barnes' study can be criticized on the grounds that: the sample used is not representative.

Explanation:

For an investigation to be accurate it is most importan to obtained results out of a representative sample. For this, object of study should be covered in those samples. In this case the research is about the sexual behavior of Middle Aged American Workers, which is a wide range of study to cover. and too many aspects to be consider to choose a correct sample. To obtain conclusions in this study a critic could be that the sample s not representatives, due to the wide range of the population chosen for the study (Americans workes of middle aged).