Exam 6: Sampling Strategies

If you want to ________,a nonrepresentative sample would be better than a representative one.

When should weighting be used to create accurate population estimates?

What is the best sampling strategy?

Which best explains why the Literary Digest poll failed to predict the winner of the 1936 presidential election?

A(n)________ case is one that does not fit a usual pattern or common understanding of how the world works.

________ research refers to research in which social scientists study a large number of cases,but only have a modest amount of information about each case.

Dr.Stephens has interviewed Betty five times over the course of his fieldwork studying heroin users in Appalachia.Betty has had strong insights that have helped him further develop his project.What role has Betty served for Dr.Stephens?

For which study would you recommend that the researchers use a census instead of a sample?

In a ________ sample,each individual and each pair of individuals has the same likelihood of being selected into the sample;in a ________ sample,each individual has the same likelihood of being selected into the sample,but not all pairs are equally likely.

How could you create a snowball sample?

Dr.Lopez is interested in studying the recruitment of high-school athletes.In order for him to provide vivid examples of the impact recruiting can have on high-school athletes,what type of cases would you recommend he focus on?

Political science students want to better understand voting students' views in campus elections.Because they cannot know in advance who will vote,and they want to use a probability sampling method,which sampling method would be best to use?

Megan is collecting data for a research project.She has decided to increase her sample size from 500 participants to 1,000 participants.As her sample size increases,her sampling error ________ and her margin of error ________.

If you are interested in studying a city that has similar features to the average city in the United States,what type of case should you select?

The ________ refers to the probability that a confidence interval includes the population parameter.

If we want to establish that our conclusions are ________,we must test our hypothesis across a range of subgroups.

The most commonly used value for confidence levels by social science researchers is ________.

You are interested in studying students' political participation on your campus.Propose how you could collect data using a probability sample and a nonprobability sample.Then,evaluate which sampling design will better mirror your population.Justify your choice.

Define a snowball sample,and then give three examples of populations from which you would recommend using snowball samples to gather data.Explain why you chose those populations.

________ sampling allows researchers to oversample groups so that researchers have more data on those groups than they would with simple random sampling.