The study has high ecological validity because it was done in real classrooms.
这项研究的生态效度很高,因为它是在真实的教室环境中进行的。
Although the lab experiment controlled many variables, critics argued that its ecological validity was limited since participants behaved differently outside the lab.
尽管该实验在实验室中控制了许多变量,批评者仍认为其生态效度有限,因为参与者在实验室外的行为会不同。