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  3. There are only two ways to gather information from human subjects about what

There are only two ways to gather information from human subjects about what

游客2023-07-15  48
问题     There are only two ways to gather information from human subjects about what they are currently doing, thinking, or feeling.  One way is to【C1】______  what they do, the technique of observation; the【C2】______  is to ask them, the technique of surveys. Many【C3】______  included in each type of technique【C4】______  several advantages and【C5】______  . Firms frequently use【C6】______  techniques to minimize【C7】______.
    There is a great variety of observational studies. A researcher stands near the entrance【C8】______  a theatre and observes the approximate age and sex of patrons【C9】______  the theatre during certain times of the day and days of the【C10】______. Researchers comb through the garbage【C11】______  of Arizona residents to【C12】______  what is being thrown【C13】______  and, by inference from packages,【C14】______  is being bought. Toy manufacturers watch【C15】______  behind one-way mirrors to see how children【C16】______  to and play【C17】______  prototypes(样品) of toys they are thinking of introducing. Observers in public places -- airports,【C18】______  offices -- watch to see【C19】______  subjects read newspapers and magazines. Researchers call【C20】______  households and take a "pantry audit" to learn the quantity and brands of certain items on the kitchen or bathroom shelves. [br] 【C3】
选项 A、findings
B、aspects
C、approaches
D、enterprises
答案 C
解析
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