A researcher surveyed two groups of Americans about their fears of the terrorism-one group in 2005 and the other group in 2015. this is an example of a Successive independent samples survey design.
What is the purpose of sampling?
Establish a representative sample, where the smaller group (sample) accurately represents the traits of the larger group, is the sampling's main objective (population). The sample can be applied to the entire population if it was well chosen. You can get a sample in a variety of methods.
What is successive independent samples studies?
A population is randomly sampled more than once using a consecutive independent samples strategy. Because the same individuals are not polled more than once, this design can analyze changes within a population but not changes inside individuals.
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