Intro To Research Chapter 10

A researcher has decided to conduct a satisfaction survey among all the patients who presented to the emergency department over a 2-month period of time. This is an example of A.Stratified random sampling B.Cluster Sampling C. Convenience Sampling D.Purposive Sampling

A.Stratified random sampling

In a study of nursing students' attitudes toward caring for patients with hypertension who are noncompliant with their medications, the researcher randomly selected a sample of nursing students from a list of all students enrolled in each of five nursing programs that had been randomly selected from one state. Because the sample was randomly selected, to which population can the findings be generalized? A. Nursing students in the programs that were randomly selected B.Nursing students in the state from which the programs were randomly selected C.Nursing students in the United States D. All nursing students

D. All nursing students

In interpreting quantitative research results, the representatives of the sample is most closely tied to. A.Internal validity. B.External validity. C.Sample validity. D.Research validity.

A.Internal validity.

A total of 20 nursing students are randomly selected from a random sample of five nursing programs in one state. Which of the following would be the largest of the identified groups? A. Accessible Population B. Control Group C. Sample D. Target Population

A. Accessible Population

Which of the following samples is least likely to be representative of the overall population? A. Convenience B. Quota C. Random D. Stratified Random

A. Convenience

Which of the following types of studies would require the largest sample size? A. Correlational study B. Ethnography C. Grounded theory D. Phenomenology

A. Correlational study

SATA: A sample included 473 women: 106 had unplanned cesarean deliveries, 113 had planned cesarean deliveries, and 254 had vaginal deliveries. All of the women who had vaginal deliveries and the majority (79%) who had unplanned cesarean deliveries were recruited from childbirth education classes. The sample was predominantly white, and all subjects spoke English, had no major prenatal complications or underlying medical problems, and delivered healthy full-term infants. Which of the following represent sample characteristics? A. Type of delivery B. Predominantly White C. Spoke English D. Recruited from childbirth classes

A. Type of delivery B. Predominantly White C. Spoke English

Which of the following studies would require the largest sample size? A.A study which the population is homogenous B. A study that involves multiple Variables C. A study measuring interval-level variables D. A study using cluster sampling

B. A study that involves multiple Variables

A total of 20 nursing students are randomly selected from a random sample of five nursing programs in one state. This is an example of what type of sampling? A. Simple random B. Cluster C. Convenience D. Purposive

B. Cluster

A researcher's decisions related to sampling affect which of the following? Choose all that apply. A. Internal consistency B. Internal Validity C. External Validity D. Choice of target population

B. Internal Validity C. External Validity

A researcher who wished to study the impact of having a child with cystic fibrosis on family functioning contacts the local CF foundation for assistance in finding parents to interview. Parents of children with CF on the local chapter are the A. Target population B.Accessible population C.Sample D.Participants

B.Accessible population

A nurse researcher who is interested in studying the career paths of deans in nursing programs approached six deans whom she knew had been active in the American Association of Colleges of Nursing and asked them to participate in her study. This sampling strategy reflects: A. Convenience Sampling B. Network Sampling C. Purposive Sampling D. Inappropriate Sampling

C. Purposive Sampling

A sample that Accurately reflects the characteristics of the population is known as A. Random Sample B. Purposive Sample C. Representative Sample D. Probability Sample

C. Representative Sample

Determination of appropriate sample size in qualitative research is based on the principles of: A. Power analysis B. The rule of 30 C. Saturation and Redundancy D. Convenience and access

C. Saturation and Redundancy

when is determination of an adequate sample size in qualitative research determined ? A. A power analysis indicates the power is 0.70 B.The sample size is large enough to identify differences in groups C. Saturation and redundancy of data are achieved D. A sample size of 30 is obtained

C. Saturation and redundancy of data are achieved

A power analysis determined that a sample size 196 would provide a power of 0.80 with anlpha less than 0.05. The study enrolled 202 subjects. Is the sample size adequate, and why? A. No, because the power achieved with a sample size of 196 is only 0.80. B.No, because the power achieved with a sample size of 196 is only 0.80. C.Yes, because the sample size was supported by a power analysis. D.Yes, because 202 subjects were included, way more than the minimum of 30.

C. Yes, the sample size was supported by a power analysis

Which of the following would be the strongest method for assigning 50 subjects to treatment and control groups in an experimental study? A.Group subjects according to attending physician. B.List subjects alphabetically, divide the list in half, place the first 25 names in the treatment group and the last 25 in the control group. C.Assign each participant a number, place even numbered participants in the treatment group and the odd numbered in the control group. -D.Assign each participant a number, place the numbers in a box, draw numbers from the box, alternating placement in either the treatment group or the control group.

D. Assign each participant a number, place the numbers in a box, draw numbers from the box, alternating placement in either the treatment group or the control group.

A nurse wishes to explore the attitudes of critical care nurses towards family presence during resuscitation. She selected for interview 10 nurses who favored family presence and 10 who did not. This is an example of which sampling method? A. Snowball Sampling B.Convenience C. Theoretical D. Purposive

D. Purposive

A total of 20 nursing students are randomly selected from a random sample of five nursing programs in one state. Which of the following would be the largest of the groups? A. Accessible population B. Control group C. Sample D. Target population

D. Target population