Exam (elaborations)

test bank for statistics and data analysis for nursing research 2nd edition by Denise F polit

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Course
Nursing

Institution
All-State Career School - Essington

test bank for statistics and data analysis for nursing research 2nd edition by Denise F polit test bank for statistics and data analysis for nursing research 2nd edition by Denise F polit test bank for statistics and data analysis for nursing research 2nd edition by Denise F polit test bank for ...

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test bank for statistics and data analysis for nursing research 2nd edition by denise f polit

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Chapters for test bank for statistics and data analysis for nursing research 2nd edition by polit. Chapter 1
Introduction to Data Analysis in an Evidence-Based Practice Environment 1.1. Statistical skills can play an important role in nursing because they help nurses to: a. Calculate appropriate doses and clinical measurements
b. Generate clinical questions *c. Evaluate and generate research evidence for nursing practice
d. Make better use of computers and the Internet
1.2. In the context of a quantitative study, a concept is called a(n): a. Operational definition
*b. Variable
c. Statistic
d. Parameter
1.3. An example of a variable is: *a. Systolic blood pressure
b. Pi (π)
c. 52.5 kilograms
d. Number of seconds in a minute
1.4. An example of a datum is: a. Systolic blood pressure
b. Pi (π)
*c. 52.5 kilograms
d. Number of seconds in a minute
1.5. Which of the following is not a component of a research question? a. An independent variable
b. A population
*c. A sample
d. A dependent variable
1.6. Identify the dependent variable in the following: In elderly men, what is the effect of chronic fatigue on level of depression? a. Age
b. Sex
c. Chronic fatigue
*d. Depression
1.7. Which of the following is a continuous variable? a. Number of pages in a book
*b. Age at death
c. Falls during hospitalization
d. Number of times married
Test Bank for Polit, Statistics and Data Analysis for Nursing Research 2nd Edition Page 1
©2010 Pearson Education, Inc., Upper Saddle River, New Jersey
Downloaded by Marie Kiriro ()
lOMoARcPSD|21369632 1.8. Measurement is the assignment of numbers to characteristics of people or objects according to specified _________ . (Fill in the blank.)
*a. Rules
b. Definitions
c. Concepts
d. Parameters
1.9. The measurement level that classifies attributes, indicates magnitude, and ha s equal intervals between values, but does not have a rational zero, is:
a. Nominal
b. Ordinal
*c. Interval
d. Ratio
1.10. The measurement level that is sometimes called categorical or qualitative is:
*a. Nominal
b. Ordinal
c. Interval
d. Ratio
1.11. It is not meaningful to calculate an arithmetic average with data from which of the following?
a. Nominal measures
b. Ordinal measures
*c. Nominal and ordinal measures
d. All measures can be meaningfully averaged.
1.12. Degree of pain measured as none, a little , or a lot is measured on which of the following scales?
a. Nominal
*b. Ordinal
c. Interval
d. Ratio
1.13. Body temperature is measured on which of the following scales?
a. Nominal
b. Ordinal
*c. Interval
d. Ratio
1.14. Type of birth (vaginal or cesarean) is measured on the:
*a. Nominal scale
b. Ordinal scale
c. Interval scale
d. Ratio scale
Test Bank for Polit, Statistics and Data Analysis for Nursing Research 2nd Edition Page 2
©2010 Pearson Education, Inc., Upper Saddle River, New Jersey
Downloaded by Marie Kiriro ()
lOMoARcPSD|21369632 1.15. Which of the following is a ratio-level measure? *a. Dietary cholesterol intake (mg)
b. Cognitive impairment on a 50-item scale
c. Pain on a 10-point scale
d. Military rank
1.16. Ratio-level measures are different than any other level by virtue of which property? a. Classification
b. Equal intervals between values
*c. A true, rational zero
d. Indication of magnitude
1.17. Which level of measurement communicates the most information? a. Nominal
b. Ordinal
c. Interval
*d. Ratio
1.18. Researchers typically collect data from a ________ and hope to generalize their results to a _____________. (Fill in the blanks.)
a. Population, sample
b. Statistic, parameter
c. Sample, statistic
*d. Sample, population
1.19. If the average amount of sleep for all people in the United States was 7.6 hours per night, this average would be a(n) _________ of the population of U.S. residents. (Fill in the blank.)
a. Variable
*b. Parameter
c. Statistic
d. Datum
1.20. If a nurse researcher measured the anxiety level of 100 hospitalized children, the children’s average score on an anxiety scale would be a(n): a. Variable
b. Parameter
*c. Statistic
d. Operational definition
1.21. Statistical methods that are used to draw conclusions about a population are called: *a. Inferential statistics
b. Descriptive statistics
c. Univariate statistics
d. Multivariate statistics
Test Bank for Polit, Statistics and Data Analysis for Nursing Research 2nd Edition Page 3
©2010 Pearson Education, Inc., Upper Saddle River, New Jersey
Downloaded by Marie Kiriro ()
lOMoARcPSD|21369632

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