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

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

A researcher conducts a survey of patients seen in an inner-city ambulatory clinic to determine barriers to receiving health care.The target population includes African-American,Hispanic,and Somali immigrant patients,as well as a variety of foreign-born students from a nearby university.The researcher chooses subjects from the African-American,Hispanic,and Somali immigrant populations to participate.This is which type of sampling?

In qualitative research,the sampling plan is developed to

Which setting is the most highly controlled setting?

Which of the following are accurate statements about the research setting when conducting research? Select all that apply.

Which statement is true about effect size?

Which of the following is true about convenience sampling?

When conducting a study in which it is not possible to determine the true number of subjects who meet eligibility criteria and obtaining a random sample would be time consuming and expensive,the researcher will use which sampling method?

A researcher wishes to evaluate the management of chemotherapy side effects in children with acute lymphocytic leukemia (ALL).Children with ALL in this study are an example of which of the following?

A nurse researcher compares the outcomes of administration of a bronchodilator either via nebulizer or by metered-dose inhaler and collects data on subjects in a pediatric inpatient hospital unit.This is an example of which type of setting?

A nurse conducts a study to examine the effects of a new intervention on FEV1 levels in patients with COPD and uses all patients admitted to a hospital during a 2-month period.This is an example of which type of sampling method?

The benefit to using a sample that utilizes narrow sampling criteria is that there is increased

During the data collection phase of a qualitative study,the researcher notes previously untheorized links among concepts.The researcher will continue to collect data until

A researcher wishes to identify all school-age children who have type 2 diabetes mellitus in a local community to develop a sampling methodology for a study of this population.Which might serve as a barrier to obtaining this information?

In a qualitative study,a sample may be too small if

A researcher conducting a qualitative study knows that saturation of information has occurred when

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?

A nurse researcher used a systematic sampling design.The known population size is 2800 and the desired sample size is 140.The sampling size (k)of the gap between elements selected from the list,as a numeral,is ______________.