Bias in a sample for a quantitative study refers to which of the following?
A) Lack of heterogeneity in the population on the attribute of interest
B) Sample selection using nonprobability-type sampling methods
C) The margin of error in the data obtained from samples
D) Systematic over- or underrepresentation of a key attribute vis-a-vis the population
D
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Sampling bias is the systematic overrepresentation or underrepresentation of some segment of the population. Nonprobability sampling (in which elements are selected by nonrandom methods) includes convenience, quota, consecutive, and purposive sampling. A key criterion in assessing a sample in a quantitative study is its representativeness—the extent to which the sample is similar to the population and avoids bias.
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The nurse is teaching a group of children and their parents about the prevention of heat-related illness during exercise. Which statement by a parent indicates an appropriate understanding of the preventive techniques taught during the teaching session?
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Examine this goal statement: Patient will walk in the hall unassisted. The two components for a correctly stated goal statement that are missing from the example above are the descriptors for ____________________ and ____________________
Fill in the blank(s) with correct word