Ch: 6 Sampling

Question 1

A group of individuals a researcher seeks to learn about from a research study

Answer 1

population

Question 2

the group of individuals chosen from the population to represent it in a research study

Answer 2

sample

Question 3

difference in scores from the population to the sample

Answer 3

Sampling error

Question 4

sample chosen such that individuals are chosen w/a specific probability

Answer 4

Probability Sample

Question 5

Individuals are chosen at non-randomly from the population such that available individuals are chosen and the chance of any one individual being selected is not known.

Answer 5

Convenience (Purposive) Sample

Question 6

Sample chosen randomly from the pop. such that each individual has an equal chance of being selected

Answer 6

Simple Random Sample

Question 7

sample chosen randomly from clusters identified in the population

Answer 7

cluster sample

Question 8

Sample chosen from the population such that the proportion of individuals w/a particular characteristic is equivalent in the population and the sample

Answer 8

Stratified Random Sample

Question 9

the degree to which a study provides causal info about behavior

Answer 9

Internal Validity

Question 10

the degree to which the results of a study apply to individuals and realistic behaviors outside the study

Answer 10

External validity

Question 11

sample chosen from the population such that available individuals are chosen

Answer 11

Haphazard/Volunteer Sample

Question 12

Individuals are chosen from the population (non-randomly) such that the proportion of individuals with a particular characteristic is equivalent in the population and the sample.

Answer 12

Quota sample

Question 13

sample chosen fro the population by recruiting on the internet

Answer 13

Internet sample

Question 14

typically a fairly lrg group of individuals ; usually impossible to test

Answer 14

Population

Question 15

the % of ppl out of the total # available who respond to a survey

Answer 15

Response Rate

Question 16

why will we always have a sampling error?

Answer 16

b/c the sample will nvr give the same observations as the entire population would.

Question 17

What are most likely to be representative of the population?

Answer 17

Probability samples

Question 18

obtained more easily than a probability sample

Answer 18

conveience sample

Question 19

Quite common in psychological research

Answer 19

haphazard/volunteer sample

Question 20

unlike a stratified random sample, this will make use of convenience sampling techniques

Answer 20

quota sample