A Study Gathered Data on 1000 Randomly Selected Students and Showed

Multiple Choice

A study gathered data on 1000 randomly selected students and showed that students who took Latin in high school had much higher scores on a test of verbal English skills than those who did not take Latin. The study cannot conclude that taking Latin improves verbal English skills because:

A) the study was not an experiment.
B) the study was not double-blind.
C) of the placebo effect.
D) the verbal English test was faulty.