What the name of the article. or book?
Answer:
laboratory experiment is an experiment conducted under highly controlled conditions (not necessarily a laboratory), where accurate measurements are possible. The researcher decides where the experiment will take place, at what time, with which participants, in what circumstances and using a standardized procedure.
Sloppy is the answer, i think. correct me if im wrong:)
The word thoughtless provides a clue to the meaning of insensitive because the defenition of insensitive means showing no feeling or concern about anyones feelings