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Research exam 3

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Quiz on Research exam 3 , created by India Curenton on 10/22/2018.
India Curenton
Quiz by India Curenton , updated more than 1 year ago
India Curenton
Created by India Curenton about 6 years ago
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Question 1

Question
Which of the following is not required for an experimental study?
Answer
  • Random sampling
  • Control group
  • Repeated measures
  • Control of the intervention

Question 2

Question
The purpose of control in a study design is to
Answer
  • Establish the credibility of the researcher
  • Highlight design flaws
  • Increase the probability that the results are true to reality
  • Interfere with the validity of the findings

Question 3

Question
In evaluating a correlations design as sound, one would look for all but which of the following?
Answer
  • Large sample
  • Low response rate of subjects
  • Sample representing all elements of the population
  • Wide range of values on each measure

Question 4

Question
Grades on a multiple choice final exam are an example of which level of measurement?
Answer
  • Ordinal
  • Interval
  • Nominal
  • Ratio

Question 5

Question
Which of the following is an example of random measurement error?
Answer
  • Actual measures smaller than True measure
  • Including elements of hope in a measure of self concept
  • Measuring blood sugar immediately after breakfast
  • Punching the wrong key when entering data into the computer

Question 6

Question
Reliability is concerned with all but which of the following in relation to measurement?
Answer
  • Accuracy
  • Consistency of measurement
  • Homogeneity
  • Systematic error

Question 7

Question
What is the difference between the simple quasi-experimental protest-posttest design and experimental pretest-posttest design?
Answer
  • More groups are used in the experimental design.
  • Subjects are blind to group assignment in the experimental design.
  • There is no direct way to measure change in the quasi-experimental group.
  • In the experimental design, subjects are blinded to their protest scores.

Question 8

Question
A type l error occurs when the researcher rejects a null hypothesis when it’s true
Answer
  • True
  • False

Question 9

Question
Type ll error occurs when the researcher regards the null hypothesis as true but it is false
Answer
  • True
  • False

Question 10

Question
The result indicate that there is a significant difference, when in reality there is not
Answer
  • Type l
  • Type ll

Question 11

Question
The results indicate there is no significant difference, when in reality there is a difference
Answer
  • Type l
  • Type ll

Question 12

Question
Research utilization involves:
Answer
  • Communication of research findings.
  • Observing outcomes from changing practice.
  • Use of knowledge in practice
  • All of the above

Question 13

Question
Which of the following has not been identified as a barrier to using research knowledge in nursing practice?
Answer
  • Findings are communicated primarily to other researchers
  • Nursing studies have adequate replication
  • Practitioners often do not value research
  • Researcher originated studies often do not solve pressing clinical problems

Question 14

Question
Development of evidence based practice guidelines is a major focus of the
Answer
  • Agency of healthcare research and quality
  • Agency for nursing innovation
  • Best practices forum for healthcare providers
  • International clearinghouse for research findings

Question 15

Question
A critical appraisal should be a
Answer
  • Analysis of a study’s internal validity problems
  • Balanced appraisal of a study’s strengths and weaknesses
  • Criticism of researchers faulty decisions
  • Inventory of problems in the study

Question 16

Question
When critiquing qualitative research, it is important to
Answer
  • Analyze the researcher adherence to qualitative standards or investigation
  • Avoid comparison of the study with other published studies to prevent bias
  • Emphasize study strengths over weaknesses
  • Use the same approach for both qualitative and quantitative study critiques

Question 17

Question
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?
Answer
  • Can the study be replicated by other researchers?
  • Did the researchers use sound methodology?
  • Was the research problem significant?
  • What preparation did the researcher have to conduct the study?

Question 18

Question
Standard deviation is the square root of the variance and provides a measure of the average deviation of a value from the mean.
Answer
  • True
  • False

Question 19

Question
A two tailed test of significance results when the hypothesis is non directional
Answer
  • True
  • False

Question 20

Question
A type ll error occurs when the null hypothesis is accepted when it is not true
Answer
  • True
  • False

Question 21

Question
The range is obtained by subtracting the lowest score from the highest score
Answer
  • True
  • False

Question 22

Question
Mode is average obtained when all numbers are added and divided by the number of variables or numbers
Answer
  • True
  • False

Question 23

Question
Inferential statistics are designed to address objectives, questions and hypothesis in a study
Answer
  • True
  • False

Question 24

Question
Generalization is the application of information that has been acquired from a specific instance to a general situation.
Answer
  • True
  • False

Question 25

Question
The median is the midpoint or score at the exact center of the ungrouped frequency
Answer
  • True
  • False

Question 26

Question
Measures of central tendency are the end points in the data and represents the average data
Answer
  • True
  • False

Question 27

Question
Statistical techniques are used to examine, reduce and give meaning to numerical data gathered by a researcher in a study.
Answer
  • True
  • False

Question 28

Question
The mean is the numerical value or score that occurs with greatest frequency
Answer
  • True
  • False

Question 29

Question
Measures of dispersion reflect individual differences
Answer
  • True
  • False

Question 30

Question
Outliers are those who chose not to participate in a research study because at risks out weighs the benefits
Answer
  • True
  • False

Question 31

Question
Limitations are restrictions or problem in a study that decrease the generalizability of the findings
Answer
  • True
  • False

Question 32

Question
Power is when the researcher manipulates and controls all of the independent variables
Answer
  • True
  • False

Question 33

Question
Another name for descriptive analysis :
Answer
  • Summary
  • Mean
  • Mode
  • Median

Question 34

Question
What would bimodel look like?
Answer
  • One curve
  • Two curve
  • Three curve
  • Four curve

Question 35

Question
What is the mode?
Answer
  • Least frequent variable/number
  • Most frequent variable/number
  • The middle number

Question 36

Question
Scatterplot is one measure of dispersion
Answer
  • True
  • False

Question 37

Question
All data will make it on normal curve
Answer
  • True
  • False

Question 38

Question
What symbol used to indicate level type l error
Answer
  • Power
  • Population
  • alpha
  • Mega

Question 39

Question
If you have 0.01 alpha value, what does it mean?
Answer
  • Mean there is 1 in 1000% chance of error
  • Means there is 1 in 100% chance of error
  • 1 in 10% chance of error
  • 1 in 5% chance of error

Question 40

Question
What are the 6 steps in data analysis?
Answer
  • Prepare data for analysis
  • Describe the sample
  • Test reliability of measurement methods
  • Conduct exploratory analysis
  • Conduct confirmatory analysis guided by hypothesis
  • Question or objectives
  • Conduct posthoc analysis
  • Reject questions or objectives

Question 41

Question
Define the mean
Answer
  • The sum of all scores multiples by the number of scores being summed
  • The sum of scores subtracted by the number of scores being summed
  • The sum of the scores divided by the number of scores being summed

Question 42

Question
What is the mode? 5 2 5 1 3 5 3 4
Answer
  • 1
  • 2
  • 5
  • 4

Question 43

Question
Determine the median- 1 4 7 10 11
Answer
  • 1
  • 7
  • 10
  • 11

Question 44

Question
What is the mean? 2 4 6 8 10
Answer
  • 10
  • 4
  • 3
  • 6

Question 45

Question
What is the most common used measure tenderness
Answer
  • Mean
  • Mode
  • Median
  • Range

Question 46

Question
List at least 1 measure of dispersion (select all that apply)
Answer
  • Range
  • Scatterplot
  • Standard deviation
  • Variance
  • Standardized scores

Question 47

Question
How do you calculate the standard deviation?
Answer
  • Mode
  • Range
  • Median
  • Square root of the variance

Question 48

Question
An inference is a conclusion or judgment based on evidence
Answer
  • True
  • False

Question 49

Question
Algorithms is self-contained step by step set of operations to be performed
Answer
  • True
  • False

Question 50

Question
Empirical generalization is based on accumulated evidence from many studies
Answer
  • True
  • False

Question 51

Question
When using a power analysis to determine an error, what is the minimum score to detect and error?
Answer
  • 0.1 minimum
  • 0.6 minimum
  • 0.8 minimum
  • 1 minimum

Question 52

Question
Define probability and what symbol is used to represent probability?
Answer
  • 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
  • Probability explains no relationship
  • Probability is a capital P
  • Unknown answer is given.

Question 53

Question
What does tailedness imply?
Answer
  • Lower scores are given
  • 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.
  • No answer implies

Question 54

Question
A causality is a cause and effect relationship between the variables
Answer
  • True
  • False

Question 55

Question
Independent variable (X) causes Y (a change in the dependent variable)
Answer
  • True
  • False

Question 56

Question
A multicausality has multiple independent variables causing a change in the dependent variable
Answer
  • True
  • False

Question 57

Question
There is a cause and effect relationship between interrelating variables
Answer
  • Causality
  • Multicausality
  • Bias
  • Control

Question 58

Question
Slanting of findings away from the truth
Answer
  • Bias
  • Control
  • Causality
  • Multicausality

Question 59

Question
Research designs should reduce likelihood of bias and control for it
Answer
  • True
  • False

Question 60

Question
Manipulation is done only in quasi-experimental and experimental designs
Answer
  • True
  • False

Question 61

Question
Implementation of a treatment/intervention & independent variables are controlled
Answer
  • Bias
  • Control
  • Manipulation
  • Causality

Question 62

Question
Example of direct measure includes
Answer
  • Pain
  • Depression
  • Coping
  • Oxygen

Question 63

Question
Example of indirect measure includes
Answer
  • Oxygen
  • O2 saturation
  • Depression
  • Temperature

Question 64

Question
It is the extent to which an instrument reflects the concept being examined
Answer
  • Reliability
  • Validity

Question 65

Question
Systematic review is a narrowly focused synthesis of research findings from quantitative studies
Answer
  • True
  • False

Question 66

Question
Multiple primary qualitative studies to produce a narrative about a selected phenomenon
Answer
  • Meta-analysis
  • Meta-summaries
  • Systematic review
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