英语翻译用google、yahoo等翻译的就免了……One random half sample was given a

英语翻译
用google、yahoo等翻译的就免了……
One random half sample was given a progress indicator,while the other was not.In traditional mail surveys when a questionnaire is not returned,it is not known whether respondents refused to participate at all or began to complete the survey but gave up at some point,and,if so,when in the instrument they decide to stop and for what reason.One advantage of interactive Web surveys is that such abandonments are measurable.On the other hand,in interactive Web surveys,respondents do not know how far they have progressed in the instrument and how much is left to complete.Thus,it is possible that surveys are abandoned close to the end,when respondents lose motivation.Abandonments appear to be a major concern,especially in self-selected Web surveys.The benefit of progress indicators is that they inform respondents of their progress through the instrument and should motivate them to complete the survey.At the same time,progress indicators may require additional download time.If so,they may slow the survey sufficiently to result in lower completion rates.In an interactive Web survey that does not permit a respondent to skip an item,the presence of a progress indicator should have no effect on item nonresponse because the effort of clicking a “don’t know” (DK) is the same as selecting a substantive response.In a survey where skips are permissible,we expect that progress indicators may reduce item nonresponse by increasing respondent motivation.
There are many ways to indicate progress through a Web survey instrument.We implemented a graphic and text indicator in the upper right corner of every screen.The indicator was out of the main visual field,but it was likely to be noticed because of its size and brightness.In addition,we added several motivational screens at key points in the instrument.In summary,our key hypothesis is that indicating progress through the survey will increase completion of the survey and reduce abandonments.

一半的随机抽样样本被成功给予了提示器,而另外一半则没有.在传统的邮寄问卷调查中,当一份调查问卷没有返回时,调查者不知道是由于回答者完全拒绝参加问卷调查,还是完成了一部分但是在某些问题上又放弃了,而且假如是这样的话,在使用这一工具时他们可以决定因为什么原因停下来.采用互联网问卷调查的一个优势是放弃调查的数目是可以测量的.另一方面,在交互式的网络问卷调查中,在使用这种手段时,回答者不知道他们完成了多少调查,以及还剩下多少要完成.因此,在快要完成问卷时,当回答者缺乏动力时,回答者可能放弃问卷调查.放弃调查是一个很重要的因素,尤其在自选的网络调查中.进度提示器的作用是,它能通知被调查者他们已经完成了多少,而且能激励被调查者接着完成调查.但同时,进度提示器需要额外的下载时间.假如这样的话,它们就会降低调查的效率,从而导致低的问卷调查完成率.在一个交互式的网络问卷调查中是不允许回答者跳过一个项目的,进度提示器的出现,对于回答者对某些问题不回答是没有影响的,因为点击“不知道”（DK）按钮与选择自己独立的回答是一回事.在调查中,如果允许跳过某些项目的话,我们能预期,进度提示器通过提高回答者的积极性,来减少可能的未回答题的数量.
通过采用网络调查工具我们会有很多指示进度的方法.我们在屏幕的右上角用图标和文本的方式进行进度提示.提示器虽然在我们的主视野之外,但是我们也能因为它的尺寸和亮度而很容易的注意到它.此外,在这一工具的一些关键点中我们又添加了几个激励回答者的屏幕.总之,我们假设的关键是在调查过程中的假设会提高调查的完成率减少调查放弃率.