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1. Data collection and non-sampling error go hand-in-hand. Define non-sampling error and what non-sampling error includes. 2. It is important for researchers to know both the sources of non-sampling errors as well as ways to minimize its effect. Describe intentional and unintentional errors as well as the causes. 3. Precautions and procedures can be implemented to minimize the effects of the various types of errors. Discuss controls that may be implemented to minimize errors on the part of both interviewer and respondent. 4. Unintentional fieldworker errors present issues as well for researchers. Precautions and procedures should be developed to minimize the effects of these errors. What are the general strategies used to minimize unintentional fieldworker errors? 5. Nonresponse errors of various types occur through the data collection phase. What types of nonresponse errors exist? How can nonresponse error be determined or calculated? 6. Skyrocketing nonresponse rates and the popularity of online surveys have prompted a number of firms to use a panel company. How do online panel companies ensure quality and control error?