Describe these types of non-probability sampling plans used most frequently in nursing:
Convenience sampling- little control over biases, weak approach, subjects are included
in the study merely because they happen to be in the right place at the right time
Quota sampling- added feature, a strategy to ensure the inclusion of subject types likely
to be underrepresented in the convenience sample, such as females, minority groups,
older adults, undereducated
The adequacy of a sample size in quantitative studies is evaluated using a power analysis.
oPower is the ability of the study to detect differences or relationships that actually exit in
the population
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