Question 1

A nurse researcher determines the assignment of a number to an object for measurement by verifying what?

Accepted Answer

A)  The object must vary within a narrow range to meet category requirements. 
B)  All objects assigned a specific measurement number must be similar to all other objects assigned the same number. 
C)  The objects assigned to one specific number must be positively related to the dependent variable of the study. 
D)  The objects assigned to one specific number must be positively related to the independent variable of the study. 
A)  The object must vary within a narrow range to meet category requirements. 
B)  All objects assigned a specific measurement number must be similar to all other objects assigned the same number. 
C)  The objects assigned to one specific number must be positively related to the dependent variable of the study. 
D)  The objects assigned to one specific number must be positively related to the independent variable of the study.

Question 2

The nurse researcher is interested in having the greatest flexibility possible in choosing statistical procedures.The level of measurement used to achieve this is what?

Accepted Answer

A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio 
A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio

Question 3

The nurse researcher is using the percentage of nurses holding various nursing degrees as a variable in a research study.Which type of statistics is most appropriate in this case?

Accepted Answer

A)  Inferential statistics 
B)  Descriptive statistics 
C)  Nonparametric statistics 
D)  Mathematical statistics 
A)  Inferential statistics 
B)  Descriptive statistics 
C)  Nonparametric statistics 
D)  Mathematical statistics

Question 4

The change in heart rate in patients with diabetes mellitus was reported as 10.95 ± 9.21 for the Adult type 1 group.How many standard deviations from the mean is a change of 23?

Accepted Answer

A)  1 SD 
B)  2 SD 
C)  3 SD 
D)  4 SD 
A)  1 SD 
B)  2 SD 
C)  3 SD 
D)  4 SD

Question 5

Which parametric statistical tests compares the difference between mental status scores for patients with dementia (Group 1)and those for patients with confusion from dehydration (Group 2)?

Accepted Answer

A)  The t test 
B)  Pearson Product Moment Correlation Coefficient 
C)  Chi-square 
D)  Meta-analysis 
A)  The t test 
B)  Pearson Product Moment Correlation Coefficient 
C)  Chi-square 
D)  Meta-analysis

Question 6

The nurse researcher is interested in describing the assignment of numbers to objects or events.This is best achieved in which way?

Accepted Answer

A)  Through use of prediction 
B)  Through use of dispersion 
C)  Through use of variability 
D)  Through use of measurement 
A)  Through use of prediction 
B)  Through use of dispersion 
C)  Through use of variability 
D)  Through use of measurement

Question 7

What is indicated by a correlation?

Accepted Answer

A)  The most frequently occurring score 
B)  Variability of scores from the mean 
C)  Range of the middle 50% of the scores 
D)  Magnitude and direction of the relationship between variables 
A)  The most frequently occurring score 
B)  Variability of scores from the mean 
C)  Range of the middle 50% of the scores 
D)  Magnitude and direction of the relationship between variables

Question 8

Which term represents the middle score in a frequency distribution?

Accepted Answer

A)  Mean 
B)  Mode 
C)  Median 
D)  Percentile 
A)  Mean 
B)  Mode 
C)  Median 
D)  Percentile

Question 9

In a study of nurses' willingness to care for patients with a contagious disease,it was found that the greater the nurses' spirituality,the greater the willingness to provide care.This finding represents what?

Accepted Answer

A)  No correlation 
B)  Perfect correlation 
C)  Positive correlation 
D)  Negative correlation 
A)  No correlation 
B)  Perfect correlation 
C)  Positive correlation 
D)  Negative correlation

Question 10

The nurse researcher opts to group frequency data using large interval widths in a research study.Which problem may be encountered by using this type of interval widths?

Accepted Answer

A)  Overlap can occur. 
B)  Patterns can be obscured. 
C)  Means cannot be determined. 
D)  Some data may not fit into any category. 
A)  Overlap can occur. 
B)  Patterns can be obscured. 
C)  Means cannot be determined. 
D)  Some data may not fit into any category.

Question 11

What is indicated by a score reported to be in the 75th percentile?

Accepted Answer

A)  The score is at the median. 
B)  The score has exceeded the mode. 
C)  The score is exceeded by only 25% of the cases. 
D)  The score represents the average of all scores measured at this time. 
A)  The score is at the median. 
B)  The score has exceeded the mode. 
C)  The score is exceeded by only 25% of the cases. 
D)  The score represents the average of all scores measured at this time.

Question 12

The nurse researcher is using respiratory rate as a variable in a research study.The level of measurement most appropriate in this case is what?

Accepted Answer

A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio 
A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio

Question 13

Which statements regarding measures of central tendency are accurate?

Accepted Answer

A)  This classification of levels of measurement is scientifically inaccurate. 
B)  Having the mean, mode, and median exactly the same indicates the measures have been correctly applied. 
C)  They have great flexibility with regard to the amount of mathematical manipulation possible. 
D)  They vary from sample to sample, even when the same trait or characteristic is measured. 
A)  This classification of levels of measurement is scientifically inaccurate. 
B)  Having the mean, mode, and median exactly the same indicates the measures have been correctly applied. 
C)  They have great flexibility with regard to the amount of mathematical manipulation possible. 
D)  They vary from sample to sample, even when the same trait or characteristic is measured.

Question 14

The nurse researcher is using a research study that involved categories of patient weights.The level of measurement that would be most appropriate in this study is what?

Accepted Answer

A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio 
A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio

A nurse researcher determines the assignment of a number to an object for measurement by verifying what?

The nurse researcher is interested in having the greatest flexibility possible in choosing statistical procedures.The level of measurement used to achieve this is what?

The nurse researcher is using the percentage of nurses holding various nursing degrees as a variable in a research study.Which type of statistics is most appropriate in this case?

The change in heart rate in patients with diabetes mellitus was reported as 10.95 ± 9.21 for the Adult type 1 group.How many standard deviations from the mean is a change of 23?

Which parametric statistical tests compares the difference between mental status scores for patients with dementia (Group 1)and those for patients with confusion from dehydration (Group 2)?

The nurse researcher is interested in describing the assignment of numbers to objects or events.This is best achieved in which way?

What is indicated by a correlation?

Which term represents the middle score in a frequency distribution?

In a study of nurses' willingness to care for patients with a contagious disease,it was found that the greater the nurses' spirituality,the greater the willingness to provide care.This finding represents what?

The nurse researcher opts to group frequency data using large interval widths in a research study.Which problem may be encountered by using this type of interval widths?

What is indicated by a score reported to be in the 75th percentile?

The nurse researcher is using respiratory rate as a variable in a research study.The level of measurement most appropriate in this case is what?

Which statements regarding measures of central tendency are accurate?

The nurse researcher is using a research study that involved categories of patient weights.The level of measurement that would be most appropriate in this study is what?

The Role of Research in Nursing

Theoretical Framework

Critical Reading Strategies: Overview of the Research Process

Developing Research Questions, Hypotheses, and Clinical Questions

Finding and Appraising the Literature

Legal and Ethical Issues

Introduction to Qualitative Research

Qualitative Approaches to Research

Introduction to Quantitative Research

Experimental and Quasiexperimental Designs

Non-Experimental Designs

Sampling

Data Collection Methods

Rigour in Research

Qualitative Data Analysis

Presenting the Findings

Critiquing Qualitative Research

Critiquing Quantitative Research

Developing an Evidence-Informed Practice

Filters

Exam 16: Quantitative Data Analysis

A nurse researcher determines the assignment of a number to an object for measurement by verifying what?

The nurse researcher is interested in having the greatest flexibility possible in choosing statistical procedures.The level of measurement used to achieve this is what?

The nurse researcher is using the percentage of nurses holding various nursing degrees as a variable in a research study.Which type of statistics is most appropriate in this case?

The change in heart rate in patients with diabetes mellitus was reported as 10.95 ± 9.21 for the Adult type 1 group.How many standard deviations from the mean is a change of 23?

Which parametric statistical tests compares the difference between mental status scores for patients with dementia (Group 1)and those for patients with confusion from dehydration (Group 2)?

The nurse researcher is interested in describing the assignment of numbers to objects or events.This is best achieved in which way?

What is indicated by a correlation?

Which term represents the middle score in a frequency distribution?

In a study of nurses' willingness to care for patients with a contagious disease,it was found that the greater the nurses' spirituality,the greater the willingness to provide care.This finding represents what?

The nurse researcher opts to group frequency data using large interval widths in a research study.Which problem may be encountered by using this type of interval widths?

What is indicated by a score reported to be in the 75th percentile?

The nurse researcher is using respiratory rate as a variable in a research study.The level of measurement most appropriate in this case is what?

Which statements regarding measures of central tendency are accurate?

The nurse researcher is using a research study that involved categories of patient weights.The level of measurement that would be most appropriate in this study is what?

The Role of Research in Nursing

Theoretical Framework

Critical Reading Strategies: Overview of the Research Process

Developing Research Questions, Hypotheses, and Clinical Questions

Finding and Appraising the Literature

Legal and Ethical Issues

Introduction to Qualitative Research

Qualitative Approaches to Research

Introduction to Quantitative Research

Experimental and Quasiexperimental Designs

Non-Experimental Designs

Sampling

Data Collection Methods

Rigour in Research

Qualitative Data Analysis

Presenting the Findings

Critiquing Qualitative Research

Critiquing Quantitative Research

Developing an Evidence-Informed Practice

Filters