Discussion: Sampling and Collecting Quantitative and Qualitative Data Specific methods of data collection (e.g., surveys, interviews, observations) produce specific types of data that will answer particular research questions, but not others; so here too, as covered in previous weeks, the research questions inform how the data will be obtained. Furthermore, the method used to collect the data may impact the reliability and the validity of that data. For this Discussion, you will first consider sampling strategies. Then, you will turn your attention to data collection methods, including their strengths, limitations, and ethical implications. Last, you will consider measurement reliability and validity in the context of your discipline. With these thoughts in mind, if your last name starts with A through L, use Position A. Position A: Probability sampling represents the best strategy for selecting research participants. A restatement of your assigned position on sampling strategies. Explain why this position is the best strategy for selecting research participants. Support your explanation with an example and support from the scholarly literature. Next, select a data collection method (e.g., surveys, interviews, observations) and briefly explain at least one strength and at least one limitation. Then, identify a potential ethical issue with this method and describe a strategy to address it. Last, explain the relationship between measurement reliability and measurement validity using an example from your discipline. **Please use learning resources and required media as needed. Be sure to support your Main Issue Post and Response Post with reference to the weeks Learning Resources and other scholarly evidence in APA Style. Learning Resources Note: To access this weeks required library resources, please click on the link to the Course Readings List, found in the Course Materials section of your Syllabus. Required Readings Teddlie, C., & Yu, F. (2007). Mixed methods sampling: A typology with examples. Journal of Mixed Methods Research, 1 (1), 77100. doi: 10.1177/1558689806292430 Mixed Methods Sampling: A Typology with Examples by Teddlie, C., & Yu, F., in Journal of Mixed Methods Research, Vol. 1/Issue 1. Copyright 2007 by Sage Publications Inc. Reprinted by permission of Sage Publications Inc. via the Copyright Clearance Center. Onwuegbuzie, A. J., & Collins, K. M. (2007). A typology of mixed methods sampling designs in social science research. The Qualitative Report, 12 (2), 281316. Retrieved from http://nsuworks.nova.edu/tqr/vol12/iss2/9 Drost, E. A. (2011). Validity and reliability in social science research. Education Research and Perspectives, 38 (1), 105124. Retrieved from the Walden Library databases. Walden University: Center for Research Quality. (2015a). Data resources & support: Home. Retrieved from http://academicguides.waldenu.edu/researchcenter/dataresources Download the Sources of Data for Research: A Research Primer document. Walden University: Center for Research Quality. (2015d). Research resources: Walden University participant pool. Retrieved from http://academicguides.waldenu.edu/researchcenter/resources/participantpool Walden University. (2015a). How do I find an article that reports on research that uses a specific methodology? Retrieved from http://academicanswers.waldenu.edu/faq/72633 Walden University: Writing Center. (2015). Common course assignments: Annotated bibliographies. Retrieved from http://academicguides.waldenu.edu/writingcenter/assignments/annotatedbibliographies Required Media Price, S. (2015). Annotated bibliographies [Online webinar]. Retrieved from https://waldencss.adobeconnect.com/p7d6uqxv8g3?launcher=false
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