High School

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You work at a field interviewing service and are asked by your supervisor to write a job announcement for a research fieldworker.


Describe the role and job requirements of a fieldworker that you should list in that ad.


b.(Refer to the following paragraph to answer the questions below) Professor Howlick is studying incoming (freshmen) student drinking behavior at Boozemen State University in Boozemen, Kansas. Every incoming freshman is required to have a university email address. After obtaining a list of all incoming freshmen students email addresses, he numbered every email address from 1 to 4,000. Using a random-number table, he obtained a sample of 200 freshman email addresses. He then emailed students requesting them to take an online survey. He also had two follow-up email reminders. A total of 180 students took the online survey.


What is Howlick’s sampling frame? What type of sampling did Professor Howlick use?


c. Professor Adam wants to study how people join a small extremist political organization dedicated to right- wing ideas. He first interviews recent recruits and asks who introduced him/her to the organization. He next interviews the named person and asks who introduced him/her to the organization, and so forth.


What type of sample is the professor using?


d. Dr. Simpson wants to investigate opinions favoring/opposing federalized healthcare among adults living in cities ranging from 100,000 and 250,000 people. First, Dr. Simpson randomly selects 10 cities in the U.S. that have a population between 100,000 and 250,000. Second, he randomly selects 10 census tracts from each of the 10 cities (a total of 100 census tracts). Third, Dr. Simpson selects two blocks from each census tract (a total of 200 blocks). Fourth, he randomly selects 5 houses from each block (a total of 1000 households).


What kind of sample is Dr. Simpson using?

Answer :

A. The role and job requirements of a fieldworker that you should list in that ad can be, 'We are seeking a dedicated and detail-oriented individual to join our team as a research fieldworker. You will play a crucial role in collecting data for our ongoing research projects.'

As a fieldworker, you will have the opportunity to interact with a diverse range of individuals, conduct interviews, and gather valuable insights. We value strong communication skills, attention to detail, and the ability to work independently. If you are passionate about contributing to research and have a keen interest in data collection, we encourage you to apply.

B. Professor Howlick's sampling frame is the list of all incoming freshmen students' email addresses. It serves as the population from which the sample is drawn. In this case, the sampling method used by Professor Howlick is a combination of stratified sampling and random sampling. By obtaining a list of all incoming freshmen students' email addresses and numbering them, Professor Howlick created a sampling frame. Then, using a random-number table, he selected a sample of 200 email addresses from the frame. This random selection ensures that every student in the sampling frame has an equal chance of being included in the sample. The students selected in the sample were emailed and asked to take an online survey.

C. Professor Adam is using a snowball sampling technique. In this type of sample, the researcher starts by identifying a few initial participants (recent recruits) and then asks them to refer other individuals who may also be suitable for the study (the named person). This process continues, with each interviewee referring more potential participants until the desired sample size is achieved. By interviewing people who have been introduced to the extremist political organization by others, Professor Adam can gain insights into the recruitment process and better understand how people join such organizations.

D. Dr. Simpson is using a multi-stage cluster sampling technique. This sampling method allows Dr. Simpson to obtain a representative sample of adults living in cities within the specified population range. By randomly selecting cities, census tracts, blocks, and households, Dr. Simpson ensures that each selected unit has an equal chance of being included in the sample, reducing bias and increasing the generalizability of the findings to the target population.

Learn more about Sampling here:

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