Chapter 7 Quiz

Another term for probability sampling is: purposive sampling. convenience sampling. random sampling. cluster sampling.

Which of the following does NOT result in a representative sample? Systematic sample Simple random sample Snowball sample Stratified random sample

he difference between a cluster sample and a stratified random sample is: cluster samples study all possible clusters; stratified random samples randomly select strata. cluster samples use oversampling; stratified random samples use undersampling. cluster samples use randomly selected clusters; stratified random samples use predetermined strata. There is no difference between cluster samples and stratified random samples.

Convenience sampling relies on which of the following? Studying people who are easy to find Studying people who are willing to participate Studying people who are typical Studying people who are colleagues of the researcher

hy are techniques like cluster sampling and multistage sampling just as externally valid as simple random sampling? They all contain elements of random selection. They all measure every member of the population of interest. They all use lists of all population members. They all rely on large samples.

A sample is always ____________ a population. more expensive to measure than smaller than more interesting than more scientific than

If researchers measure every tenth member of a population, they have: conducted a census. collected a sample. increased internal validity. biased the study.

A sample is to _________________ as a population is to _________________. part; entire external; internal people; groups participants; researchers

Which of the following is true of probability sampling? It is the best way to obtain a representative sample. It is the same as random assignment. It results in larger samples than nonprobability sampling. It should only be used when external validity is not the goal of the study.

Dr. Chandler is a personality psychologist who is interested in studying the characteristics of people who report being abducted by UFOs. She finds several people in an online support group for UFO abductees to participate and asks them if they can provide the names and contact information of other people who have also been abducted. Upon contacting these new participants, she asks them to refer her to even more people they may know who have been abducted. This is an example of what kind of sampling? Purposive sampling Snowball sampling Convenience sampling Self-selection sampling