Open-Ended Questions Have Certain Challenges, Thesis

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c)

A restricted sample is restricted to one or more narrow criteria, where the sample is not representative of the population as a whole. An unrestricted sample is representative.

d)

In simple random sampling, all samples of the same size have an equal chance of selection. Complex random sampling can take a variety of forms, such as stratified or cluster sampling.

e)

Convenience sampling relies on sample representatives that are available at any given time or place. Purpose sampling selects a sample subjectively, according to the purpose of the research.

f) Sample accuracy refers to the position of the sample relative to the true value, while precision refers to the relative closeness of measurements on the same sample.

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g)

When measuring variance within a single data source, this is referred to as systematic variance. Error variance refers to all other sources of variability.

h)

Variable parameters have not type, while attribute parameters are those that refer to specific types.

Proportionate sampling refers to strata sample sizes that are proportional to the strata population sizes. Disproportionate methods do no sample strata according to population….....

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