chapter 7 vocab terms

Question 1

biased sample

Answer 1

a sample in which come members of the population of interest are systematically left out, and the results cannot generalize to the population of interest

Question 2

unbiased sample

Answer 2

a sample in which all members of the population of interest are equally likely to be included and the results can generalize to the population of interst

Question 3

convenience sampling

Answer 3

choosing a sample based on those who are easiest to access and readily available

Question 4

self-selection

Answer 4

a form of sampling bias that occurs when a sample contains only people who volunteer to participate

Question 5

probability sampling

Answer 5

a category name for random sampling techniques in which a sample is drawn form a population of interest so each member has an equal and known chance of being included in the sample

Question 6

nonprobability sapling

Answer 6

category name for nonrandom sampling techniques, that result in a biased sample

Question 7

simple random sampling

Answer 7

the most basic form of probability sampling in which the sample is chosen completely at random from the population of interest.

Question 8

systematic sampling

Answer 8

a probability sampling technique in which ther researcher uses a randomly chosen number (N) and counts off every Nth number of a population to choose a sample

Question 9

cluster sampling

Answer 9

a probability sampling technique in which clusters of participants within the population of interest are selected at random

Question 10

multistage sampling

Answer 10

a probability sampling technique involving at least two stages: a random sample of clusters followed by a random sample of people with the selected clusters.

Question 11

stratified random sampling

Answer 11

a form of probability sampling; a random sampling technique in which the researcher identifies particular demographic categories or state and then randomly selects individuals with each category

Question 12

oversampling

Answer 12

form of probability sampling, a variation of stratified random sampling in which the researcher intentionally overrepresented one or more groups

Question 13

random assignment

Answer 13

use of a random method to assign participants into different experimental groups (flipping a coin)

Question 14

purposive sampling

Answer 14

a biased sampling technique in which only certain kinds of people are included in a sample

Question 15

snowball sampling

Answer 15

a variation on purposive sampling, a biased sampling technique in which participants are asked to recommend acquaintances for the study

Question 16

quota sampling

Answer 16

A biased sampling technique in which a researcher identifies subsets of the population of interest, sets a target number for each category in the sample, and nonrandomly selects individuals within each category until the quotas are filled.