# What can you do at the survey design stage to reduce the risk of unit nonresponse

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53. What can you do at the survey design stage to reduce the risk of unit nonresponse?

57.What is an unbalanced panel? When can unbalancedness be a problem?

60. Provide examples of measurement error problems that are nonclassical.

63. Discuss two examples of parametric statistical model.

64 Discuss the nature of the parameter space for a simple classical linear regression model. How does this parameter space change if you know that your regression line goes through the origin?

65 Suppose that X and Y are jointly normal and you assume that the conditional mean of Y given X is linear in X. How restrictive is your assumption? Discuss.

66 Suppose that X and Y are jointly normal and you assume that the conditional variance of Y given X does not depend on X. How restrictive is your assumption? Discuss.

67 What is a linear probability model? What are the pros and cons of this model?

72 Contrast the classical (frequentist) and the Bayesian approaches to statistical modeling. Illustrate with one example.

73 How do you interpret a prior distribution over the parameter space of a statistical model? Illustrate with one example.

Professor Markins
School: University of Maryland

It has been great working with you right from the start to the end. I wish you all the best in your academics. Feel free to ask me any question in the future.

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Question 53

Varying data collection modes will have different average rates of response. Using the
theory of leverage-salience in participation surveys would give some insights about the behavior
of the interviewer. The interviewer should discern the interviewee to achieve utmost cooperation
from them. Secondly, effective interviewer should learn to keenly observe the interviewees
behavior in both verbal and non-verbal traits so that they can discern their concerns, whereby the
description of the survey will be customized to those concerns hence improving their response
rates. Thirdly, the public should be made ‘survey-minded.’ In case there exists a statistics
positive appreciation from the public, respondent cooperation will be higher. Fourthly, there
should be an extensive training of statisticians. Making the statisticians have a proper knowledge
of the non-response issue will make them able to address it entirely failure to which they will
disregard this concern. Fifthly, there should be preparations to send reminders and call-backs so
that the respondent may plan and remember the scheduled time for the interview. Finally, an
estimate for non-respondent sampling should be conducted (Amahia, 2004). The equation bellow
can be helpful in evaluating this estimate;
p = 0.8p1 + 0.2p2
where,
p1 = applied estimate to the collected data through mail
p2 = applied estimate ...

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Anonymous
Wow this is really good.... didn't expect it. Sweet!!!!

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