TOEFL Listening: ETS-TOEFL听力机经 - 1KFVM2H35Z3ADZ4UP$

What does the professor mention as a weakness of the article published by the psychologists? A. Its conclusions are contradicted by newly published research. B. Its conclusions are limited to lessons taught in science classes. C. The psychologists did not follow the scientific method carefully enough. D. The psychologists failed to consider teachers' accounts of classroom experiences.