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Research Methodology: Data Collection & Sampling Strategy

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The principal of XYX high school with 400 students is worried about the level of the students in mathematics. He is specially worried that the students will not get good grades at the SAT exams. That is why he decided to enroll all students at that high school in a 2-month Program which offers online courses for SAT preparations. But since the fee for the course is quite expensive. That is why he decided to test the effectiveness of the courses first. Hence, he makes a sample of 40 students from the high school and enroll them in the program. The students take a mock SAT test before the 2-months course and another test at after the course is completed. He wants to see if there is a significant improvement in the student's average SAT scores after completing the course.

From the above, can you display appropriate identification of data collection methods, construct samples of your methods, and show an understanding of sampling strategy pertinent to the above project. Do not collect data. Identify and discuss two data collection methods (e.g., questionnaire, focus group, interviews, etc.) that you will be using to collect your data and justify your selections for each of the two of note, you should create your own items and not use questions from existing surveys or forms. 2.) Provide an exemplary sample of each of your two chosen "tools and processes," including content and format. (e.g., develop 5 specific likert-scaled questions, focus group questions, etc. 3.) Identify, discuss, and justify a sampling strategy for your evaluation.

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The Solution provides an example method to collect data for a hypothesis and find sampling strategies to match.

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1.) From the above, can you display appropriate identification of data collection methods, construct samples of your methods, and show an understanding of sampling strategy pertinent to the above project. Do not collect data. Identify and discuss two data collection methods (e.g., questionnaire, focus group, interviews, etc.) that you will be using to collect your data and justify your selections for each of the two of note, you should create your own items and not use questions from existing surveys or forms.

For our analysis we will use two data collection methods: questionnaire and interviews.
Questionnaire is data collected during a survey campaign. This data can be analysed and broken down, yielding statistics and insights that can be used to boost business.

Interviews are used to collect data from a small group of subjects on a broad range of topics. You can use structured or unstructured interviews. Structured interviews are comparable to a questionnaire, with the same questions in the same order ...

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Chris Busu, PhD (IP)
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  • BSc, University of Bucharest
  • MSc, Ovidius
  • MSc, Stony Brook
  • PhD (IP), Stony Brook
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