Exam 9: Examining Populations and Samples in Research

A researcher wishes to conduct a survey of attitudes about illness among young adults with cystic fibrosis.The researcher contacts a nearby regional medical cystic fibrosis clinic,where 250 young adults who have cystic fibrosis are seen.A group of 50 young adults are selected to complete the survey.These 50 people are the:

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 is a type of probability sampling?

Which statement is true about systematic sampling?

Which type of research study tends to require a larger sample size than the others?

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

Which setting is the most highly controlled setting?

In order to decrease the time needed to achieve saturation in information in a qualitative study,the researcher will:

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?

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:

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:

In qualitative research,the sampling plan is developed in order to:

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:

When using stratified random sampling,the researcher is able to:

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

A pilot study reveals a wide variation in measurement values among subjects with an overall mean value that is higher than among the general population.By increasing the sample size in a subsequent study,the researcher expects to:

A researcher who wishes to study the effects of a prenatal breastfeeding education program on the length of time African-American inner-city women breastfeed infants learns that 70% of women in the target population are unmarried.To achieve stratified random sampling in a sample of 50 subjects,the researcher will:

A researcher plans to utilize a systematic random sampling method from a population of 5000 eligible subjects,using a sample of 200 subjects.Beginning at a randomly selected point on the list of subjects,what is the gap between elements?

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?

A researcher begins a study with 250 subjects,and 50 subjects drop out before the study is concluded.The researcher will declare 20% as the sample: