Nursing quiz

1. Declaration of Helsinki (1964/1975) is related to:

A. Qualitative research

B. Genetics research

C. Ethical standards in research

D. Statistical methods in research

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2. "Above all, do no harm".

This principle encompassed in the ethical dimension of:

A. Human dignity

B. Justice

C. Beneficence

D. Anonymity

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3. Three factors are important regarding the rights of the participants include all except:

A. Confidentiality

B. Anonymity

C. Voluntary participation

D. Jurisprudence

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4. When the researcher is not allowed control of the treatment variable and cannot achieve randomization because of ethical considerations, institutional policies or other situational factors, the researcher chooses:

A. True experimental studies

B. Quasi experimental studies

C. Exploratory studies

D. Qualitative studies

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5. Factors affecting power include:

A. . Size of the effect

B. Standard deviation of the characteristic

C. Bigger sample size

D. Significance level desired

E. All of the above

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6. A descriptive metric that characterizes the standardized difference (in SD units) between the mean of a control group and the mean of a treatment group is:

A. Effect size

B. LSD

C. Beta

D. Chi-square

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7. The power of a statistical test is influenced by:

A. Size of the effect

B. Sample size

C. Beta (β)

D. All of the above

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8. Which of the following statements about power of a test is FALSE?

A. Power of the test refers to probability of detecting a predefined clinically significant difference.

B. Power of a test explains the risk of a false-positive finding

C. Power of the test is usually set at (1-20%) 80%

D. Power = 1 - β

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9. A statistical expression of magnitude of relationship between two variables or magnitude of difference between two groups:

A. Effect size

B. Eigenvalue

C. p-value

D. z-score

Answer Key