CAT · Critical Reasoning · Quiz
5 real CAT questions on Critical Reasoning. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 3
EASYA study found that students who attended schools with extended lunch breaks performed better academically than students with shorter lunch breaks. The researchers concluded that longer lunch breaks improve academic performance. Which of the following, if true, most weakens the researchers' conclusion?