几种测量尺度形式的比较

The Difference About Several Response Scale Types

量表条目问题答案的设计是量表研制过程中一个重要环节,其中线性尺度、等级尺度和两分类是最常用的测量尺度形式。每种测量尺度都有其特点,线性尺度更适用于评价同一个体随时间的变化情况;等级尺度的使用要注意各选项间的等距性;两分类尺度可能提供的信息相对较少。在实际设计过程中,各类型的测量尺度设计并不是很严格,往往是根据所测内容的特质、被试者的理解能力及应答率等多方面综合考虑尺度的合理设计,并且多种方式融合使用。

It is an important course for designing the answers to the items during the development of an instrument. Linear scale,ranking scale and binary category are in common use,and each one has its specialty. The linear scale is used to measure the change of the same individual with time; the ranking scale is paid more attention to the equal distance between the points; while,the binary category maybe provide less information. In fact,the design of response scale is not invariable,and we usually use several types simultaneously,considering the particularity of what we are to measure,the comprehension of the interviewer,the re-sponse rate,etc.