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Quiz von India Curenton , aktualisiert more than 1 year ago
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Erstellt von India Curenton
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Frage 1
Frage
Which of the following is not required for an experimental study?
Antworten
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Random sampling
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Control group
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Repeated measures
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Control of the intervention
Frage 2
Frage
The purpose of control in a study design is to
Antworten
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Establish the credibility of the researcher
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Highlight design flaws
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Increase the probability that the results are true to reality
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Interfere with the validity of the findings
Frage 3
Frage
In evaluating a correlations design as sound, one would look for all but which of the following?
Antworten
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Large sample
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Low response rate of subjects
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Sample representing all elements of the population
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Wide range of values on each measure
Frage 4
Frage
Grades on a multiple choice final exam are an example of which level of measurement?
Antworten
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Ordinal
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Interval
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Nominal
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Ratio
Frage 5
Frage
Which of the following is an example of random measurement error?
Antworten
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Actual measures smaller than True measure
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Including elements of hope in a measure of self concept
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Measuring blood sugar immediately after breakfast
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Punching the wrong key when entering data into the computer
Frage 6
Frage
Reliability is concerned with all but which of the following in relation to measurement?
Antworten
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Accuracy
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Consistency of measurement
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Homogeneity
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Systematic error
Frage 7
Frage
What is the difference between the simple quasi-experimental protest-posttest design and experimental pretest-posttest design?
Antworten
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More groups are used in the experimental design.
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Subjects are blind to group assignment in the experimental design.
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There is no direct way to measure change in the quasi-experimental group.
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In the experimental design, subjects are blinded to their protest scores.
Frage 8
Frage
A type l error occurs when the researcher rejects a null hypothesis when it’s true
Antworten
- True
- False
Frage 9
Frage
Type ll error occurs when the researcher regards the null hypothesis as true but it is false
Antworten
- True
- False
Frage 10
Frage
The result indicate that there is a significant difference, when in reality there is not
Antworten
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Type l
-
Type ll
Frage 11
Frage
The results indicate there is no significant difference, when in reality there is a difference
Antworten
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Type l
-
Type ll
Frage 12
Frage
Research utilization involves:
Antworten
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Communication of research findings.
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Observing outcomes from changing practice.
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Use of knowledge in practice
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All of the above
Frage 13
Frage
Which of the following has not been identified as a barrier to using research knowledge in nursing practice?
Antworten
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Findings are communicated primarily to other researchers
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Nursing studies have adequate replication
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Practitioners often do not value research
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Researcher originated studies often do not solve pressing clinical problems
Frage 14
Frage
Development of evidence based practice guidelines is a major focus of the
Antworten
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Agency of healthcare research and quality
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Agency for nursing innovation
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Best practices forum for healthcare providers
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International clearinghouse for research findings
Frage 15
Frage
A critical appraisal should be a
Antworten
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Analysis of a study’s internal validity problems
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Balanced appraisal of a study’s strengths and weaknesses
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Criticism of researchers faulty decisions
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Inventory of problems in the study
Frage 16
Frage
When critiquing qualitative research, it is important to
Antworten
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Analyze the researcher adherence to qualitative standards or investigation
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Avoid comparison of the study with other published studies to prevent bias
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Emphasize study strengths over weaknesses
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Use the same approach for both qualitative and quantitative study critiques
Frage 17
Frage
A researcher is intellectually critiquing the publisher study of another researcher. Which of the following questions is not an appropriate question to ask when examining the study?
Antworten
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Can the study be replicated by other researchers?
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Did the researchers use sound methodology?
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Was the research problem significant?
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What preparation did the researcher have to conduct the study?
Frage 18
Frage
Standard deviation is the square root of the variance and provides a measure of the average deviation of a value from the mean.
Antworten
- True
- False
Frage 19
Frage
A two tailed test of significance results when the hypothesis is non directional
Antworten
- True
- False
Frage 20
Frage
A type ll error occurs when the null hypothesis is accepted when it is not true
Antworten
- True
- False
Frage 21
Frage
The range is obtained by subtracting the lowest score from the highest score
Antworten
- True
- False
Frage 22
Frage
Mode is average obtained when all numbers are added and divided by the number of variables or numbers
Antworten
- True
- False
Frage 23
Frage
Inferential statistics are designed to address objectives, questions and hypothesis in a study
Antworten
- True
- False
Frage 24
Frage
Generalization is the application of information that has been acquired from a specific instance to a general situation.
Antworten
- True
- False
Frage 25
Frage
The median is the midpoint or score at the exact center of the ungrouped frequency
Antworten
- True
- False
Frage 26
Frage
Measures of central tendency are the end points in the data and represents the average data
Antworten
- True
- False
Frage 27
Frage
Statistical techniques are used to examine, reduce and give meaning to numerical data gathered by a researcher in a study.
Antworten
- True
- False
Frage 28
Frage
The mean is the numerical value or score that occurs with greatest frequency
Antworten
- True
- False
Frage 29
Frage
Measures of dispersion reflect individual differences
Antworten
- True
- False
Frage 30
Frage
Outliers are those who chose not to participate in a research study because at risks out weighs the benefits
Antworten
- True
- False
Frage 31
Frage
Limitations are restrictions or problem in a study that decrease the generalizability of the findings
Antworten
- True
- False
Frage 32
Frage
Power is when the researcher manipulates and controls all of the independent variables
Antworten
- True
- False
Frage 33
Frage
Another name for descriptive analysis :
Antworten
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Summary
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Mean
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Mode
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Median
Frage 34
Frage
What would bimodel look like?
Antworten
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One curve
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Two curve
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Three curve
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Four curve
Frage 35
Frage
What is the mode?
Antworten
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Least frequent variable/number
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Most frequent variable/number
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The middle number
Frage 36
Frage
Scatterplot is one measure of dispersion
Antworten
- True
- False
Frage 37
Frage
All data will make it on normal curve
Antworten
- True
- False
Frage 38
Frage
What symbol used to indicate level type l error
Antworten
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Power
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Population
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alpha
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Mega
Frage 39
Frage
If you have 0.01 alpha value, what does it mean?
Antworten
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Mean there is 1 in 1000% chance of error
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Means there is 1 in 100% chance of error
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1 in 10% chance of error
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1 in 5% chance of error
Frage 40
Frage
What are the 6 steps in data analysis?
Antworten
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Prepare data for analysis
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Describe the sample
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Test reliability of measurement methods
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Conduct exploratory analysis
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Conduct confirmatory analysis guided by hypothesis
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Question or objectives
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Conduct posthoc analysis
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Reject questions or objectives
Frage 41
Frage
Define the mean
Antworten
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The sum of all scores multiples by the number of scores being summed
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The sum of scores subtracted by the number of scores being summed
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The sum of the scores divided by the number of scores being summed
Frage 42
Frage
What is the mode? 5 2 5 1 3 5 3 4
Antworten
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1
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2
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5
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4
Frage 43
Frage
Determine the median- 1 4 7 10 11
Antworten
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1
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7
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10
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11
Frage 44
Frage
What is the mean? 2 4 6 8 10
Antworten
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10
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4
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3
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6
Frage 45
Frage
What is the most common used measure tenderness
Antworten
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Mean
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Mode
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Median
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Range
Frage 46
Frage
List at least 1 measure of dispersion (select all that apply)
Antworten
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Range
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Scatterplot
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Standard deviation
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Variance
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Standardized scores
Frage 47
Frage
How do you calculate the standard deviation?
Antworten
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Mode
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Range
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Median
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Square root of the variance
Frage 48
Frage
An inference is a conclusion or judgment based on evidence
Antworten
- True
- False
Frage 49
Frage
Algorithms is self-contained step by step set of operations to be performed
Antworten
- True
- False
Frage 50
Frage
Empirical generalization is based on accumulated evidence from many studies
Antworten
- True
- False
Frage 51
Frage
When using a power analysis to determine an error, what is the minimum score to detect and error?
Antworten
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0.1 minimum
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0.6 minimum
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0.8 minimum
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1 minimum
Frage 52
Frage
Define probability and what symbol is used to represent probability?
Antworten
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Probability theory is used to explain the extent of a relationship, the probability that an event will occur in a given situation. Deductive (Top-down) and expressed as a lower case p. Probability is usually expected to be p<0.05
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Probability explains no relationship
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Probability is a capital P
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Unknown answer is given.
Frage 53
Frage
What does tailedness imply?
Antworten
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Lower scores are given
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An extreme score can occur in either tail of the normal curve. The data stems toward one end of the spectrum. In a one-tailed test, the hypothesis is directional and vice versa in a two tailed test.
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No answer implies
Frage 54
Frage
A causality is a cause and effect relationship between the variables
Antworten
- True
- False
Frage 55
Frage
Independent variable (X) causes Y (a change in the dependent variable)
Antworten
- True
- False
Frage 56
Frage
A multicausality has multiple independent variables causing a change in the dependent variable
Antworten
- True
- False
Frage 57
Frage
There is a cause and effect relationship between interrelating variables
Antworten
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Causality
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Multicausality
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Bias
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Control
Frage 58
Frage
Slanting of findings away from the truth
Antworten
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Bias
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Control
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Causality
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Multicausality
Frage 59
Frage
Research designs should reduce likelihood of bias and control for it
Antworten
- True
- False
Frage 60
Frage
Manipulation is done only in quasi-experimental and experimental designs
Antworten
- True
- False
Frage 61
Frage
Implementation of a treatment/intervention & independent variables are controlled
Antworten
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Bias
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Control
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Manipulation
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Causality
Frage 62
Frage
Example of direct measure includes
Antworten
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Pain
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Depression
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Coping
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Oxygen
Frage 63
Frage
Example of indirect measure includes
Antworten
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Oxygen
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O2 saturation
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Depression
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Temperature
Frage 64
Frage
It is the extent to which an instrument reflects the concept being examined
Antworten
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Reliability
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Validity
Frage 65
Frage
Systematic review is a narrowly focused synthesis of research findings from quantitative studies
Antworten
- True
- False
Frage 66
Frage
Multiple primary qualitative studies to produce a narrative about a selected phenomenon
Antworten
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Meta-analysis
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Meta-summaries
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Systematic review
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