Evidence-Based Practice for Nurses

CHAPTER OBJECTIVES

KEY TERMS

At the end of this chapter, you will be able to:

‹ Identify the basic concepts associated
with sampling
‹ Differentiate between probability
and nonprobability samples
‹ Describe various sampling methods
‹ Identify quantitative and qualitative
research sampling strategies
‹ Discuss factors that should be
considered when determining sample
size

‹ Describe strategies that enhance the

recruitment and retention of subjects

‹ Identify factors related to sampling

that must be considered when

appraising studies for evidence-based

practice

‹ Describe ethical considerations

related to sampling

accessible population
anonymity
assent
attrition rate
cluster sampling
coercion
confidentiality
convenience sampling
data saturation
effect size
elements
exclusion criteria
heterogeneous
homogeneity

inclusion criteria

informed consent

network sampling

nonprobability sampling

population

power analysis

probability sampling

purposive sampling

quota sampling

randomization

representativeness

sample

sampling bias

sampling error

sampling frame

sampling interval

sampling plan

significance level

simple random sampling

snowball sampling

stratified random sampling

subjects

systematic random

sampling

target population

theoretical sampling

vulnerable population