研究人员使用心理评估工具来测试研究的有效性。
The researchers used a psychological assessment tool to test the validity of the study.
他们通过观看广告参与进来并且真正带着批判性眼光评估该广告涉及的消费者行为，他们有时还参与做初步的研究。
They get involved by looking at advertising and really critically assessing the consumer behavior aspects of it and getting involved sometimes, doing primary research.
加州大学洛杉矶分校的琳达·萨克斯的研究就是一个恰当的例子，她利用了一项全国性的大一新生调查来评估单性别高中和男女混合高中的效果。
A case in point is the study by Linda Sax at UCLA, who used data from a large national survey of college freshmen to evaluate the effect of single-sex versus coeducational high schools.
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