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Author Question: Which of the following was not mentioned as a specific limitation of mail surveys? a. nonresponse ... (Read 31 times)

Kthamas

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on: Aug 17, 2018
Which of the following was not mentioned as a specific limitation of mail surveys?
 
  a. nonresponse
  b. lack of uniformity in response
  c. requires large field staff
   d. possible misinterpretation of questions

Question 2

What is a random sample and why must samples be random?
 
  What will be an ideal response?


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sarajane1989

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Reply #1 on: Aug 17, 2018
Answer to Question 1

C

Answer to Question 2

Students should explain that the act of random sampling is a defining feature of a true experiment. Random sampling refers to a process that generates a mathematically random result. It leads to a way to divide a collection of cases into two or more groups in order to increase one's confidence that:
(i) The groups do not differ in a systematic way
(ii) Unknown, extraneous variables are controlled for
(iii) Statistical techniques and reasoning that relies on randomization are used.


Kthamas

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Reply #2 on: Aug 17, 2018
TY


sarajane1989

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Reply #3 on: Aug 17, 2018
You're welcome


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