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22 Cards in this Set

  • Front
  • Back
Availability Sampling
Sampling in which elements are selected on the basis of convenience.
Census
Research in which information is obtained through responses from or information about all available members of an entire population.
Cluster
A naturally occurring, mixed aggregate of elements of the population.
Cluster sampling
Sampling in which elements are selected in two or more stages, with the first stage being the random selection of naturally occurring clusters and the last stage of being the random selection of elements within clusters
Disproportionate stratified sampling
Sampling in which elements are selected from strata in different proportions from those that appear in the population.
Elements
The individual members of the population whose characteristics are to be measured.
Enumeration units
Units that contain one or more elements and that are listed in a sampling frame.
Inferential Statistics
A mathematical tool for estimating how likely it is that a statistical result based on data from a random sample is representative of the population from which the sample is assumed to have been selected.
Nonprobability sampling method
Sampling method in which the probability of selection of population elements is unknown.
Nonespondents
People or other entities who do not participate in a study although they are selected for the sample.
Periodicity
A sequence of elements (is a list o be sampled) that varies in some regular, periodic pattern.
Population
The entire set of individuals or other entities to which study findings are to be generalized.
Population Parameter
The value of a statistic, such as a mean, computed using the data for the entire population; a sample statistic is an estimate of a population parameter.
Probability of selection
The likelihood that an element will be selected from the population for inclusion in the sample.
Probability sampling method
A sampling method that relies on a random, or chance, selection method so that the probability of selection of population elements is unknown.
Proportionate stratified sampling
sampling method in which elements are selected from strata in exact proportions to their representation in the population
Purposive sampling
A nonprobability sampling method in which elements are selected for a purpose, usually bc of their unique position.
Quota sampling
A nonprobability sampling method in which elements are selected to ensure that the sample represents certain characteristics in proportion to their prevalence in the population.
Random digit dialing
The random dialing by a machine of numbers within designated phone prefixed, which creates a random sample for phone surveys,
Random number table
A table containing lists of numbers that are ordered solely on the basis of chance; it is used for drawing a random sample.
Random sampling
A method of sampling that relies on a random, or chance, selection method so that every element of the sampling frame has a known probability of being selected.
Random sampling error
Differences between the population and the sample that are due only to chance factors. not to systematic sampling error.