Exam 9: Examining Populations and Samples in Research

A researcher wishes to study the effects of a nursing intervention on children with cancer and obtains a sample of school-age children hospitalized for cancer treatment in a local hospital.This sample represents the

To decrease the probability of systematic variation in a study to evaluate the effects of a teaching program on disease management,the researcher will use which sampling process?

The type of nonprobability design that is most likely to yield a representative sample is

Which is a type of probability sampling?

In a study investigating type 2 diabetic patients' ability to make lifestyle changes,the researcher randomly selects a sample from a list of all patients diagnosed with type 2 diabetes in the United States.The researcher also selects the sample by randomly selecting patients diagnosed for 3 years or longer and those who are newly diagnosed.What sampling technique is used in this study?

A researcher will conduct a qualitative study about partners of patients diagnosed with sexually transmitted diseases.This researcher will use which sampling technique to achieve the best representation of this population?

Which of the following is true about sample size in a qualitative study?

In a study of patients who have dementia,a researcher wishes to examine the effects of moderate exercise on patients' abilities to perform self-care.The researcher decides to use subjects between 70 and 80 years of age who have been diagnosed with dementia for less than 1 year.A patient who is 65 years old meets

To decrease the time needed to achieve saturation in information in a qualitative study,the researcher will

Which type of setting is most commonly used in qualitative research?

A researcher tests a measurement tool in a pilot study and notes a wide variance in scores.To improve the significance of the study's findings in subsequent studies,the researcher will

The goal of sampling theory is to

A researcher begins with a registry of all patients with HIV in the United States.The researcher uses a computer to generate a random sample from the list,and then those individuals agree to participate in a study.What kind of sample has been created?

Which statement is true about systematic sampling?

The goal of appropriate sampling in research is to

A researcher wishes to examine whether a teaching program for parents increases adherence to a drug regimen among children with seizure disorders.A convenience sample of children in a large teaching hospital is proposed.To prevent confounding of the results by socioeconomic status and type of health insurance,the researcher will utilize which additional sampling technique?

During a study about nurses' ability to teach lifestyle changes in patients with coronary artery disease,the researcher discovers that many nurses have negative attitudes about obesity.The researcher develops a survey to examine these attitudes.This is an example of

When using stratified random sampling,the researcher can

A researcher uses a sample whose members have characteristics like those of the population from which it is drawn.This is an example of a

The individual units of the population and sample are called _________________.