Q Please Read chapter 6 of your text and it is important that you listen to my video on sampling design, above: Video on Sampling Design and Questionnaire Development (Required) The video primarily includes tips for sampling design and this assignment. However, a little bit of it extends into questionnaire design, the subject of some of the other assignments for this unit. (The parts of the video about questionnare design, and other assignments, are brief. It will take little time to go back and listen to the final parts later, after you reac ch. 7 and 8, if you wish.) Please either select the "Research in Action" Santa Fe Case, at the end of the chapter, or your own restaurant you developed earlier. I want you to develop a proposed sample design for Santa Fe Grill, discussed at the end of the chapter, or for your restaurant. This assignment is at "the heart" of what I want you to know in the second unit. (Do not want you to answer the specific questions listed at the end of the case.) Your answer for this assignment should explain your proposed sampling design specifics for Santa Fe Grill. Specifically,sampling design steps are summarized on p. 162 of the text, and the first five are: 1. 1. Define the target population 2. 2. Select the data collection method 3. 3 Identify the sampling frame (s) needed 4. 4. Select the appropriate sampling method 5. 5. Determine the necessary sample size Assignment: I would like you to explain to the Santa Fe Grill, or to you, as the owner of the restaurant, the specifics of your sampling design plan for the stages’ 1-5. Please give a specific target population, suggest your data collection method (personal, telephone, mail, or internet), identify the sampling frame (merely meaning, how will you obtain respondents), explain your sampling method, and determine the sample size. (Please briefly explain your restaurant, again, before you discuss the different stages, if you select your own restaurant.) Remember that these different stages are interrelated. What you do in one sets up your logic in the next one! Give details about your specifics of your sampling method, in Step 3. There are several probability procedures (simple random, systematic random, stratified random, and cluster) and several non-probability (convenience, judgment, quota, and snowballing). Please explain the one you would use to acceptably generalize about your target population. For example, if you suggest quotas, what types of people should be in the quotas? If not a cluster sample, but a probability sample, where will you get the list? If a cluster probability approach, please give some specifics about the specific types of clusters you will use. ------------------ The remainder of my comments are in the video and do not feel that you must read them!! Specifically, I want you to realize why this assignment is so central to the second unit!! The steps are your plan about how you want to reach your population. This is similar to a marketing plan about how you want to attract your target market. Thus, the single biggest key to this assignment is that you begin with "your population," and that you develop the remaining stages in a manner that leads to getting a good sample, that generalizes about them, by the time you get to the final stage. If you want to attract people who may not know about the restaurant, then you should not end up with a sample of consumers who eat at the restaurant. Merely, I want you to think. This is more important than anything!! It might be a good idea to outline a draft, and think about how the stages link to each other. Then, perhaps, slightly refine your logic so that the stages follow each other better? However, just as you develop a marketing plan to reach a target market, you are preparing a sampling plan because you want to reach your population. ------------------ On Added Comment: How to Determine The Sample Size (Step 5). I will discuss these comments, about sample size, in the video, too.) I do not want you to have to use statistical inference and assessments to determine sampling size for this assignment. The use of statistical inference is one approach, and I would not at all mind that students answer by applying statistical assessment, from the text. However, I will assume that this is beyond the scope of some students taking the course. Yet, there are other ways to determine sample size, and the text suggests the approach that I often also use, on p. 161, in "Other Sample Size Determination Approaches." Here, the book argues that a researcher should determine the relevant sub-groups that exist. Then, at least 30-100 individuals should be selected from each sub-group. For example, suppose that you want to examine two groups: individuals who eat at Mexican restaurants moderately, and people who eat at these restaurants heavily. Suppose that you also believe that you should examine the following age groups: those between 18-24, those who are between 24-34, those who are between 35-64, and those who are 65+. This means that you are examining 2 types of Mexican food consumers—and four age groups of each. In other words, you are examining 8 types of consumers. You believe that you need to make sure that you capture enough individuals in each of these sub-groups, in such a situation. Related to sample size, suppose that you think that you need about 50 individuals from each sub-group. Then, you would need a sample of 8 (groups) x 50 individuals, or 400 individuals. This approach has a relevant logic. The central limit theorem argues that 30 objects should be selected. Yet, you might have error and you likely will select a little bit more than 30 individuals in each group, such as 50, or a 100 individuals. The book also suggests that you should try to get enough people—within each group relevant to you—aimed at these groups because you believe that they are important constituents of your population. Do you understand my logic?? That you could explain the types of groups you care about—and then make sure that your sample size is large enough so that you survey 50+ or 100+ individuals within each group that matters to you. (I will briefly explain how to select sample size, and my logic, above, in the video.) Please, for step 5, explain the sample size that you believe is relevant.
View Related Questions