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NURS 4325 Knowledge Check 2 Verified Answers

John Marsh
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NURS 4325 Knowledge Check #2 Verified Answers

Question 1

You are examining results that are comparing three different educational degrees in
nursing (diploma, ADN, and BSN) to their reported levels of commitment to the
profession. The researcher set the alpha level (the level of statistical significance) prior
to the study at p< 0.05.
Which of the findings below demonstrate statistical significance, based on the
researcher’s alpha level?
No decision can be made as to whether a significant difference was found among
diploma, associate degree, and baccalaureate graduates’ scores.
A significant difference was found among diploma, associate degree, and baccalaureate
graduates’ scores (r =.40, p = .001).
A significant difference was found among diploma, associate degree, and baccalaureate
graduates’ scores (r =.112, p = .24).

Question 2

What statistical test would you use to determine a relationship between hours worked
by nurses in a week and medication errors?
X2- chi squared
frequency distribution
standard deviation
r- Pearson product moment

Statistics used to show associations or relationships is the Pearson product moment-r.

Question 3

Which of the following measures of central tendency would be appropriate to describe
the average pulse rates of a group of hospitalized patients?

Question 4

The level of significance usually set in nursing studies is at either:
.03 or .003
0.5 or 0.1
.005 or .001
.05 or .01

Question 5

Which of the following types of studies would require the largest sample size?
Grounded theory

Question 6

According to Makic et al (2014), which one of these is NOT an intervention suggested
for critically ill patients and frequent turning and the prevention of skin breakdown?
ensuring the provision of adequate staff and a turning schedule for each unit
providing good skin care practices and nutritional support
turning patients every two hours (or more frequently)
using of support surfaces therapies (specialty beds) for high risk patients

Question 7

Identify the type of sampling method used in the following example: To obtain mothers
of children with cystic fibrosis, a researcher contacted one such mother who lived in her
neighborhood and asked her if she knew any other mothers of children with cystic
Convenience sampling
Cluster sampling
Simple random sampling
Network sampling

Question 8

One of the 2020 goals of the Institute of Medicine (IOM) is that ________ of all clinical
decisions be evidence-based.

Question 9

A sample of 75 subjects was asked by a nurse researcher to participate in a study at an
immunization booth in the mall. What type of sampling method is the researcher using?
Network sampling
Convenience sampling
Systematic sampling
Stratified random sampling

Question 10

A power analysis is conducted to:
estimate a sample size.
test for internal validity.
determine a reliability coefficient.
set the level of significance.

Question 11

A researcher notes that although no statistical significance was found, some elderly
nursing home residents with dementia who were exposed to soothing music for 6 hours
daily exhibited lower heart rates and less agitation. This finding would have which type
of significance?
Statistical significance
Inferential statistics
General inferences
Clinical importance

Question 12

According to Groves, Gray and Burns (2015), which one of the following are considered
barriers to evidence-based practice?
There may be inadequate research evidence to support certain nursing interventions in
The potential for improved outcomes for patients, providers, and healthcare agencies.
There is a need to implement a pilot study as a part of following the Iowa model.

Question 13

According to Makic et al (2014) what is the best way to confirm placement of a feeding
tube when radiography is not available in a pediatric population?
detecting carbon dioxide using colometry or capnography
testing aspirate for presence of bilirubin and trypsin
testing aspirate for pH and color
testing aspirate for concentration of pepsin

Question 14

Content validity is defined as:
measuring stability, equivalence, and homogeneity of a questionnaire.
including all of the major elements relevant to the construct being measured.

maintaining research controls as indicated in the study design and hypotheses.
reviewing the inferential and demographics data of the sample.

Question 15

In the Iowa Model of Evidence Based Practice, if a nurse brings forward a new research
article with ideas that she/he would like to consider implementing on the unit, this would
be considered to be:
a knowledge-focused trigger.
an opportunity to monitor and analyze structure, processes, and outcome data.
a problem-focused trigger.
an opportunity for comparative evaluation between two units.

Question 16

According to Melnyk et al (2012), what specifically is the role of the EBP mentor?
to remove the barriers of EBP for staff nurses and nurse leadersto work with staff nurses to consistently implement and sustain EBP
to work with potential obstacles to EBP such as physicians and nurse leaders
to create clearinghouses of evidence-based practice information

Question 17

Descriptive statistics should be reported in every study for which of the following
As an indication of reliability
To determine validity
To show the sample characteristics
To provide a powerful analysis of data

Question 18

A nursing student is critiquing a study for her nursing research class. She feels like the
study findings are generalizable to other settings and populations because:the review of literature was extensive and included a conceptual framework.
there is consistency of the current study’s finding with that found in previous
research studies.
the sampling criteria for subjects was very narrow and restrictive, to provide a
homogenous sample.
it has a small sample size which was obtained by convenience.

Question 19

Open-ended questions provide primarily ________ data.
In order to collect qualitative data open-ended questions are asked.

Question 20

Which type of reliability is the consistency of measurement of two or more raters?Accuracy
When two or more raters are measured for consistency of data collection it is interrater

Question 21

According to Peterson et al (2014), what type of evidence is considered to be
the strongest?
Similar findings from individual replicated studies.
Systematic reviews of Random Controlled Trials (RCTs).
Findings from non-experimental research.
Meta-synthesis of related qualitative studies.

Question 22

In this example of a PICO question: “In elderly hospitalized patients, what is the effect of
hourly nursing rounds on reducing falls compared with the standard practice of bedside
call lights and low bed positioning?” Hourly nursing rounds represent what element of
the PICO format?
C – comparison
I – intervention
P- population
O – outcome

Question 23

According to Makic et al (2014), which of these is NOT a role of the nurse in the
prevention of venothromboembolism (VTE)?
Providing early mobility / exercise for patient as indicated to reduce the risk of VTE.
Assessing all patients on admission for risk factors related to the development of VTE.
Ensuring that chemical and mechanical therapies are maintained to reduce the risk of
Knowing the pharmacological recommendations for VTE prophylaxis for medical and
surgical patients.

Question 24

According to Peterson et al (2014), in AACN’s 2012 rating scale level system, grouping
together A, B, and C levels of evidence would result in
experimental levels of evidence for practice.
evidence-based recommendations for practice.
expert opinion or manufacturer’s recommendations for practice.
non-experimental levels of evidence for practice.

Question 25

Cronbach’s alpha is used to determine:
internal consistency among items on a scale.
equivalence of observations.
triangulation of theories.
stability of repeated measurement over time.




NURS 4325 Knowledge Check 2

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