搜索结果：Drs. Shah and Ali conducted a study to investigate the effect of learning in either an online lecture taught by Dr. Shah or an in-person lecture taught by Dr. Ali. The same material was taught in both classes and students were randomly assigned to one of the two conditions. At the end of the semester, the researchers compared their data and found that students performed better in online lectures. Is this a valid conclusion?No, the groups were not equivalent.Yes, the lectures were identical.Yes, random assignment meant the group differences were due to the lecture format.No, differences may have been due to the lecturer.
搜索结果：Drs. Shah and Ali conducted a study to investigate the effect of learning in either an online lecture taught by Dr. Shah or an in-person lecture taught by Dr. Ali. The same material was taught in both classes and students were randomly assigned to one of the two conditions. At the end of the semester, the researchers compared their data and found that students performed better in online lectures. Is this a valid conclusion?No, the groups were not equivalent.Yes, the lectures were identical.Yes, random assignment meant the group differences were due to the lecture format.No, differences may have been due to the lecturer.
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