Answer:
c. get the respondent to answer a question more fully.
Explanation:
A probe is applied to promote conversation without affecting the answer. It is especially appropriate for open-ended questions. Probes are utilized more commonly in open-ended questions than in closed-ended ones. The basic function of a probe is to provide the respondent to answer the questions completely.
Normally you would put the topic in the center of a diagram
It has a big effect on happiness.
The correct answer is "Emory Bogardus's research on social distance". Emory Bogardus designed a Social Distance Scale for measuring attitudes toward racial and ethnic groups. Bogardus believed that the more prejudiced is a person against a race or ethnic group the less he would like to interact with someone that belongs to that group. He applied this concept to make the Social Distance Scale.