A researcher has received only 20 percent of the questionnaires that she sent to the 6,000 freshmen at a large Midwestern university. What is the first step the researcher should take to increase the return rate in this survey?
a. Telephone the non-respondents, asking them to return the questionnaire
b. Send a follow-up letter with another copy of the questionnaire and a self-addressed campus envelope
c. Telephone the non-respondents requesting a personal interview
d. Receive permission from professors to stop by classes to collect surveys.
Ques. 2Vygotsky's theory of cognitive development suggests that teachers should emphasize
a. the acquisition of scientific concepts.
b. the acquisition of basic skills and facts.
c. cooperative learning among peers of similar ability.
d. discovery learning techniques.
Ques. 3Which of the following is NOT typically included in a cover letter accompanying a mailed questionnaire?
a. The purpose of the study
b. The importance of the study
c. Request for a return of questionnaire by a specified date
d. The number of people chosen to receive the questionnaire
Ques. 4According to Vygotsky,
a. children benefit greatly from information handed down to them by those who are more cognitively advanced.
b. peer interactions do more to stimulate cognitive development than do interactions with adults.
c. Piaget was incorrect in asserting that the formal operational stage was the highest level of cognitive development.
d. genetically determined factors predispose how effectively children assimilate, accommodate, and equilibrate new information.
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