Flashcards
Chapter 1
Flashcards do conjunto (18)
- 1PopulationThe entire collection of individuals or objects that you want to learn about
- 2SampleA part of the population that is selected for study
- 3Observational studyObserves characteristics of a sample that is representative of the population in order to learn about the population
- 4ExperimentThe person conducting the study looks at how a response behaves under different experimental conditions
- 5CensusCollects data from everyone is the population (rare)
- 6Population characteristicA number that describes the entire population
- 7StatisticA number that describes a sample
- 8Simple random sample of size nm
- 9Sampling frameObjects or individuals in the population
- 10Sampling with replacementOnce selected, it is put back into the population before the next selection
- 11Sampling without replacementOnce selected, it is not put back into the population before the next selection
- 12Stratified random samplingDivides the population into subgroups (strata) and then takes a separate random sample from each subgroup (stratum)
- 131 in k systematic samplingSelects from an ordered arrangement of a population by choosing a random starting point then selecting every kth individual after that
- 14Voluntary response samplingPeople who volunteer to be a part of the sample, often hold strong opinions
- 15Selection biasThe way the sample is selected systematically excludes some part of the population, therefore unrepresentative
- 16Measurement or response biasThe tendency for samples to differ from the population because the method of observation tends to produce values that differ from the true value
- 17Examples of response biasAppearance or behavior of the person asking the question, dishonest about illegal behavior, wording the question
- 18Nonresponse biasWhen responses are not obtained from all individuals selected into the sample
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- 2 Psychology FlashCards sobre Chapter 1, criado por Tega Orihunu em 14-01-2016.
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- Tega Orihunu
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