Design -is it a questionnaire study or a laboratory experiment?

研究设计-是问卷调查研究还是一个实验室的试验？

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On the basis of building the index system of competitive factors, a questionnaire study has been done for Chinese manufacturing enterprises.

在构建竞争要素指标体系的基础上，对我国制造企业进行了问卷调查。

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Volunteers in the study were photographed, and then filled out a personality questionnaire.

研究项目中的志愿者都拍了照，并填写了一份性格调查问卷。

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Another study of 119 cancer patients with difficulty sleeping found valerian before bedtime for two months had no significant effect on sleep scores calculated from a questionnaire filled out before the study and after two months.

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The researchers, who used a questionnaire designed exclusively for the study, found no significant change across the cycle in how the women perceived their level of commitment to the relationship or, at least initially, in their satisfaction with it.

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In the study, researchers used a questionnaire, called the Carolinas Comfort Scale, to assess quality of life with such questions as whether patients feel a "sensation of mesh" after surgery or pain or movement limitations during daily activities.

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