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NUR 400 Exam 100% Correct!!
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sample size - ANSWERnumber of participants in a study power - ANSWERability to find/show results from a study random sample - ANSWERall members of a population have an equal chance of being selected for the study sample; can make inferences about external validity random assignment - ANSWERall m...

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  • October 9, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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NUR 400 Exam 100% Correct!!

sample size - ANSWERnumber of participants in a study

power - ANSWERability to find/show results from a study

random sample - ANSWERall members of a population have an equal chance of being selected for
the study sample; can make inferences about external validity

random assignment - ANSWERall members of the sample are have an equal chance of being in the
intervention or control group; can make inferences about internal validity

simple random sample - ANSWERevery participant is chosen by chance

stratified random samples - ANSWER- create subgroups (strata)

- random sample from each subgroup

- represent diversity in population

stratified random sampling - ANSWERButtner-Schmidt and colleagues (2015) studied the impact of
smoking legislation on smoke pollution leves in bars and restaurants in North Dakota. A total of 135
venues were randomly sampled from three strata: restaurants, bars in communities with ordinances
stronger than the state law, and bars are not in such communities.



This is an example of what type of sampling?

1. convenience

2. purposeful

3. snowball - ANSWER3 types of non-random samples?

convenience sampling - ANSWERsample is easy to reach/find

purposeful sampling - ANSWERsample is based on selected characteristics, and the expert assumes
representativeness

snowball sampling - ANSWERparticipants suggest future participants, hard to reach groups

1. observation

2. biophysiological

3. self-report - ANSWER3 kinds of data?

observation data - ANSWERsleep/wake state, speech, and gait are examples of what type of data?

structured observation - ANSWER______________ _________ involves the use of formal
instruments and protocols that dictate what to observe, how long to observe it, and how to record
the data.

, structured observation data - ANSWERNilsen and colleagues (2014) conducted a study of nursing
care quality that involved observation of communication between nurses and mechanically
ventilated patients in an ICU. Among many different types of observations made, observers recorded
instances of positive and negative nurse behaviors, according to carefully defined criteria.



This is an example of what type of data collection?

1. in-vivo

2. in-vitro

3. anthropomorphic - ANSWER3 types of biophysiological data?

in-vivo (inside the person) - ANSWERblood pressure is an example of what kind of biophysiological
data?

in-vitro (taken out of the person) - ANSWERa blood test is an example of what kind of
biophysiological data?

anthropomorphic (personal characteristics) - ANSWERBMI is an example of what kind of
biophysiological data?

self-report - ANSWER____ _____ data is from questions given to the patient, either in the form of a
questionnaire or interview

close-ended - ANSWERwith _____ _____ questions, the researcher fixes responses

open-ended - ANSWERwith _____ _____ questions, the patient responds in their own words

close-ended, the options for response are either yes, no, or unsure - ANSWER"Have you been
stressed lately?" is a _____ _____ question

open-ended, because the participant answers in their own words - ANSWER"Can you share with us
what has been troubling you?" is a(n) ______ ______ question

Likert Scale - ANSWERstatement with agreement on dimension with 5-7 responses (strongly agree,
agree, neutral, disagree, strongly disagree) is known as a

reliability, validity - ANSWERquality of data is based on _______ and _________

consistency; getting the same results every time - ANSWERwhat is the key to reliability?

inter-rater - ANSWERtwo people using the same measure and getting the same results is known as



a. test-retest reliability

b. inter-rater reliability

c. internal consistency reliability

test-retest - ANSWERmeasuring at two different times and getting the same result is know as ______
reliability

internal consistency reliability - ANSWERquestions on scale assessing the same thing is known as ....

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