NUR 389 - Test 3 Questions and Answers Already Passed Latest Update 2025-2026
Identify the statement that describes a population. - Answers 1. Trauma clients hospitalized in
an intensive care unit during January 2010
Identify the phrase that describes an accessible population. - Answers 4. All adolescents
studying biology at the local high school
Which procedure describes a probability sampling method? - Answers 1. Identification of a
sampling frame for an accessible population, writing element names on paper, placing the
written names in a bowl, and drawing element names from the bowl
If a target population contains 3,360 elements and the researcher seeks a systematic random
sample of 30 elements, the sampling interval would be ____. - Answers 112
Which statement regarding nonprobability sampling is accurate? - Answers 3. Snowball
sampling is a form of convenience sampling.
The researcher has decided to use simple random sampling and a table of random numbers to
select participants for a study. What action is required prior to this selection? - Answers 4. List
all of the elements in the population.
Which title most likely reflects use of a longitudinal approach? - Answers 2. Is There a
Relationship Between Forceps Delivery and Developmental Delays Identified Annually to Age
Eight?
When is a small sample size appropriate for a research study? - Answers 2. The population is
very homogenous.
Which statement regarding sampling error and sampling bias is accurate? - Answers 4.
Sampling error may be contained in sample data even when the most careful random sampling
procedure has been used to obtain the sample.
Which sampling method would be most practical and provide the most reliable data to study the
ethical conflicts experienced by registered nurses who work in city, county, and federal prisons?
- Answers 2. Cluster random sampling
The nurse researcher hopes to be able to generalize study results to the population of the
United States. What action should this researcher take regarding sample size? - Answers 1. Plan
a sample size of 5,000 to 6,000.
The nurse researcher is studying caring behaviors in a group of 125 nursing students admitted
to a BSN program in a university in the southern United States. The nurse plans to collect
information from each student prior to starting the nursing program, at the end of the first
clinical year, and again at the end of the program. What terms could be used to describe this
study? - Answers 2. Longitudinal
, 4. Cohort
The nurse is reading a research report and notices that the stated N for the study is 95. In the
reports section, data are provided for 87 subjects. What is the most important question for the
reader to ask about this study? - Answers 3. How is dropout handled in the study?
Which group represents a convenience sample? - Answers 1. The students seen in the
University Health Clinic on one afternoon in May
The study design proposes advertising in the local newspaper to attract subjects for a study.
The subjects would be paid $75 for their participation in the study. How should the nurse
interpret this plan? - Answers 4. The results of this study may not be generalizable.
The nurse researcher plans to use systematic random sampling to determine participants in a
study. Which components are necessary to begin this selection? - Answers 1. Population list
2. Sampling interval
3. Random starting point
A nurse researcher is considering using convenience sampling to choose participants in a study.
The researcher must be prepared to accept which disadvantages of this sampling method? -
Answers 3. Results may have limited generalizability.
5. The method usually results in a biased sample.
The researcher asks another nurse to use a study instrument to score a questionnaire
completed by study participants. The researcher has previously used the instrument to score
the questionnaire and will compare the two results. Which type of reliability is this researcher
trying to establish? - Answers 4. Equivalence
A researcher is developing a data collection instrument to measure nurses' attitudes about their
working conditions. A draft copy of the instrument is sent to 20 nurse clinicians to critique and
provide feedback. What is the researcher attempting to establish by using this strategy? -
Answers 3. Content validity
A nurse is completing a questionnaire that asks for the nurse's area of specialization in nursing
(Peds, OB, Med Surg). On which scale is this data measured? - Answers 4. Nominal scale
A study is conducted to measure the effect of specific nursing interventions on the oxygen
saturation of infants. Oxygen saturation is an example of what level of measurement? - Answers
3. Ratio scale
A study was conducted to evaluate shivering in the postoperative patient. The study measures
subjects' weight in pounds and temperature in centigrade degrees. What should the reader
consider about the level of measurement of these two parameters? - Answers 2. Weight is
Identify the statement that describes a population. - Answers 1. Trauma clients hospitalized in
an intensive care unit during January 2010
Identify the phrase that describes an accessible population. - Answers 4. All adolescents
studying biology at the local high school
Which procedure describes a probability sampling method? - Answers 1. Identification of a
sampling frame for an accessible population, writing element names on paper, placing the
written names in a bowl, and drawing element names from the bowl
If a target population contains 3,360 elements and the researcher seeks a systematic random
sample of 30 elements, the sampling interval would be ____. - Answers 112
Which statement regarding nonprobability sampling is accurate? - Answers 3. Snowball
sampling is a form of convenience sampling.
The researcher has decided to use simple random sampling and a table of random numbers to
select participants for a study. What action is required prior to this selection? - Answers 4. List
all of the elements in the population.
Which title most likely reflects use of a longitudinal approach? - Answers 2. Is There a
Relationship Between Forceps Delivery and Developmental Delays Identified Annually to Age
Eight?
When is a small sample size appropriate for a research study? - Answers 2. The population is
very homogenous.
Which statement regarding sampling error and sampling bias is accurate? - Answers 4.
Sampling error may be contained in sample data even when the most careful random sampling
procedure has been used to obtain the sample.
Which sampling method would be most practical and provide the most reliable data to study the
ethical conflicts experienced by registered nurses who work in city, county, and federal prisons?
- Answers 2. Cluster random sampling
The nurse researcher hopes to be able to generalize study results to the population of the
United States. What action should this researcher take regarding sample size? - Answers 1. Plan
a sample size of 5,000 to 6,000.
The nurse researcher is studying caring behaviors in a group of 125 nursing students admitted
to a BSN program in a university in the southern United States. The nurse plans to collect
information from each student prior to starting the nursing program, at the end of the first
clinical year, and again at the end of the program. What terms could be used to describe this
study? - Answers 2. Longitudinal
, 4. Cohort
The nurse is reading a research report and notices that the stated N for the study is 95. In the
reports section, data are provided for 87 subjects. What is the most important question for the
reader to ask about this study? - Answers 3. How is dropout handled in the study?
Which group represents a convenience sample? - Answers 1. The students seen in the
University Health Clinic on one afternoon in May
The study design proposes advertising in the local newspaper to attract subjects for a study.
The subjects would be paid $75 for their participation in the study. How should the nurse
interpret this plan? - Answers 4. The results of this study may not be generalizable.
The nurse researcher plans to use systematic random sampling to determine participants in a
study. Which components are necessary to begin this selection? - Answers 1. Population list
2. Sampling interval
3. Random starting point
A nurse researcher is considering using convenience sampling to choose participants in a study.
The researcher must be prepared to accept which disadvantages of this sampling method? -
Answers 3. Results may have limited generalizability.
5. The method usually results in a biased sample.
The researcher asks another nurse to use a study instrument to score a questionnaire
completed by study participants. The researcher has previously used the instrument to score
the questionnaire and will compare the two results. Which type of reliability is this researcher
trying to establish? - Answers 4. Equivalence
A researcher is developing a data collection instrument to measure nurses' attitudes about their
working conditions. A draft copy of the instrument is sent to 20 nurse clinicians to critique and
provide feedback. What is the researcher attempting to establish by using this strategy? -
Answers 3. Content validity
A nurse is completing a questionnaire that asks for the nurse's area of specialization in nursing
(Peds, OB, Med Surg). On which scale is this data measured? - Answers 4. Nominal scale
A study is conducted to measure the effect of specific nursing interventions on the oxygen
saturation of infants. Oxygen saturation is an example of what level of measurement? - Answers
3. Ratio scale
A study was conducted to evaluate shivering in the postoperative patient. The study measures
subjects' weight in pounds and temperature in centigrade degrees. What should the reader
consider about the level of measurement of these two parameters? - Answers 2. Weight is
