Flashcards in Ch: 6 Sampling Deck (20)
A group of individuals a researcher seeks to learn about from a research study
the group of individuals chosen from the population to represent it in a research study
difference in scores from the population to the sample
sample chosen such that individuals are chosen w/a specific probability
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.
Convenience (Purposive) Sample
Sample chosen randomly from the pop. such that each individual has an equal chance of being selected
Simple Random Sample
sample chosen randomly from clusters identified in the population
Sample chosen from the population such that the proportion of individuals w/a particular characteristic is equivalent in the population and the sample
Stratified Random Sample
the degree to which a study provides causal info about behavior
the degree to which the results of a study apply to individuals and realistic behaviors outside the study
sample chosen from the population such that available individuals are chosen
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.
sample chosen fro the population by recruiting on the internet
typically a fairly lrg group of individuals ; usually impossible to test
the % of ppl out of the total # available who respond to a survey
why will we always have a sampling error?
b/c the sample will nvr give the same observations as the entire population would.
What are most likely to be representative of the population?
obtained more easily than a probability sample
Quite common in psychological research