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GMAT
GMAT Verbal Reasoning Section

Weakening the Conclusion on Group Study Effectiveness

Very Hard Critical Reasoning Evaluating Arguments

In a recent study, researchers found that students who studied in groups achieved significantly higher scores on standardized tests than students who studied alone. Some educators have concluded that group study is more effective than individual study and should be the preferred method of learning in schools. However, critics argue that the study's findings may not be universally applicable, as the success of group studying could depend on various factors, such as the size of the group, the subject being studied, and the individual learning styles of students.

Which of the following, if true, would most seriously weaken the educators' conclusion that group study is more effective than individual study?

Hint

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Correct575
% Correct61%