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Walden NURS 3151C week 3 quiz
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Walden NURS 3151C week 3 quiz
Quantitative research can be described as
objective and formal
subjective and formal
objective and informal
subjective and informal
A quantitative research study
must have ratio level data
must have at least interval level data
uses participant observation
uses standardized measures
The blueprint for quantitative studies is termed
Methods to collect data in a descriptive quantitative study
could include all but
administering a questionnaire to participants
analyzing an existing data set
manipulating the independent variable for positive
reinforcement of desired behaviors
observing participants responses to an intervention
Correlation research may be used to
describe observations of nurse bedside reporting techniques
examine the association between patient handoff and patient
participate in a cultural experience to understand the
participant’s pain reactions
review medical records to obtain historical data
The results of correlation research
implies that one variable causes a change in another
implies that one variable does not cause a change in another
implies there may be a relationship between the two
variables where one may influence the outcome of the other
implies there is a cause-and-effect relationship between the
two dependent variables
Home care nurses are observed as they provide skin care to
individuals with hospital acquired pressure ulcers. On average, the nurses
spend at least ten minutes more providing this care than they normally do. This
is an example of what concept relevant to quantitative research?
How is a sample different from a population?
A sample is larger than a population.
A population is larger than a sample.
A population is part of a sample
There is no difference, the terms mean the same thing in
A researcher is studying the relationship between fatigue
and stress among staff nurses in an acute care setting. 100 nurses were
recruited and completed a self-administered questionnaire. This can add bias to
the study because
This requires someone to read the questions to the
participant to be sure they are interpreted accurately.
The researcher isn’t completely sure who completed the
The questionnaire may not be completed within the required
The questionnaire must be completed in the presence of the
When selecting a questionnaire to be used as a research
instrument, the researcher must be sure the instrument is ____________.
Credible and trustworthy
Credible and valid
Reliable and valid
Reliable and trustworthy
A causal relationship is said to exist
When the dependent variable changes as the independent
variable is manipulated.
When the independent variable changes as the dependent
variable is manipulated.
There is no change when either of the variables are
Both variables change when the independent variable is
A researcher wants to know whether nursing fatigue is one
cause of poor patient satisfaction scores. The independent variable is
Patient satisfaction scores
Both nursing fatigue and patient satisfaction scores
Number of hours worked by the nurse during the week previous
to measuring patient satisfaction scores.
A sampling technique used in experimental design includes
Causality is tested through which of the following?
All quantitative research
Why does subject attrition affect internal validity?
A study in which the majority of the subjects die calls into
question whether the treatment itself is safe
Subjects who drop out may differ from those who stay in the
study, in terms of an important extraneous variable.
Type I error is almost guaranteed with very unequal sample
Subject mortality may result in a sample that is so much
smaller than anticipated that type II error may result.
A questionnaire used in a study is said to be reliable if
the results obtained are
Match the description of the research with the type of
The Life Impact Rating Scale was administered to college
The relationship between the lack of sleep and medication
errors were analyzed
It was determined low potassium levels in a cardiac patient
caused the tachycardia
Students completed an inventory identifying coping
mechanisms, attended a two day course on how to succeed in college, and then
completed the same inventory two months later to determine if the workshop was
Cause and effect
Pre-test – post-test
In research, rigor involves adhering to the study design,
paying strict attention to detail, and being sure all data collected is
The plan for data analysis can be developed once the data
collection is complete.
A mixed methods research design means two types of
quantitative studies are used to collect and analyze the data.
In quantitative experimental research, the independent
variable is manipulated to determine the effects on the dependent variable.
A research may choose to conduct a pilot study before the
main study is conducted in order to determine if the data collection tool will
measure the dependent variable accurately.
A random table of numbers may be used to select participants
for an experimental study.
The pre-test post design is used in correlation research to
show there is a relationship between the pre and post interventions.
The researcher must select an appropriate design for a study
in order to eliminate error and make critique of the findings possible.
The difference between probability sampling and
nonprobability sampling is the chance of a participant being selected to
participate in the study.
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