Question 5 for your political science class youd like

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Question 5 For your political science class, you’d like to take a survey from a sample of all the Catholic Church members in your town. Your town is divided into 17 neighborhoods, each with similar socio-economic status distribution and ethnic diversity, and each contains a Catholic Church. Rather than trying to obtain a list of all members of all these churches, you decide to pick 3 churches at random. For these churches, you’ll ask to get a list of all current members and contact 100 members at random. What kind of design have you used? Your Answer Score Explanation quota sampling simple random sampling cluster sampling systematic
sampling stratified sampling 0.00 This is not stratified sampling since we’re not told that the neighborhoods are homogenous within themselves, and we are not sampling from each neighborhood (but instead from a random sample of neighborhoods that we believe to be representative of all). Total 0.00 / 1.00 Question Explanation This question refers to the following learning objective(s): I n o r r e c t
Question 6 In an experiment, what purpose does blocking serve? Your Answer Score Explanation
Total 1.00 / 1.00 Question Explanation This question refers to the following learning objective(s): Identify the four principles of experimental design and recognize their purposes: control any possible confounders, randomize into treatment and control groups, replicate by using a sufficiently large sample or repeating the experiment, block any variables that might influence the response.
Question 6 True or False: Stratified sampling allows for controlling for possible confounders in the sampling stage, while blocking allows for controlling for such variables during random assignment. Your Answer Score Explanation
C o r r e c t Stratifying and blocking both allow for controlling for potential confounders, but at different stages of the study design. We stratify when we sample (divide population into strata and sample from within each stratum), and block in the process of random assignment (divide sample into blocks and randomly assign from within each block to treatment groups). Total 1.00 /
1.00 Question Explanation This question refers to the following learning objective(s): Identify the four principles of experimental design and recognize their purposes:

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