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(Correct Answer) HLT362 : Quiz 2

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  1. If a researcher does not select the appropriate level of significance (alpha) based upon prior research or industry standard and concludes that the study found a statistical difference when in fact there was no difference, this is referred to as _____
  • Type II error
  • Reliability
  • Type I error
  • Validity

2. Which of the following would be an appropriate null hypothesis?

  • The mean of the sample is greater than 65.
  • The mean of a sample is equal to 65.
  • The mean of a population is greater than 65.
  • The mean of a population is equal to 65.

3. A Type I error is committed when _____.

  • We reject a null hypothesis that is true.
  • We do not reject a null hypothesis that is false.
  • We reject a null hypothesis that is false.
  • We do not reject a null hypothesis that is true.

4. In a research study, if the sample size is too low and the results do not find a statistical difference when in fact there is a difference, this is referred to as _____.

  • Type II error
  • Reliability
  • Validity
  • Type I error

5. A Type II error is committed when _____.

  • We do not reject a null hypothesis that is true.
  • We do not reject a null hypothesis that is false.
  • We reject a null hypothesis that is true.
  • We reject a null hypothesis that is false.

6. A Type II error is committed when _____.

  • We do not reject a null hypothesis that is false.
  • We reject a null hypothesis that is false.
  • We reject a null hypothesis that is true.
  • We do not reject a null hypothesis that is true.

7. Quantitative research strives for quality and the ability to apply the analysis to a broader population. This is referred to as _____.

  • Reliability
  • Generalization
  • Validity
  • Normality

8. A Type II error is committed when _____.

  • We reject a null hypothesis that is false.
  • We do not reject a null hypothesis that is false.
  • We reject a null hypothesis that is true.
  • We do not reject a null hypothesis that is true.

9. To obtain a sample of 20 patients in ICU, clinician goes to the ICU and selects the current patients. This is an example of a:

  • Judgment sampling
  • Simple random sampling
  • Snowball sampling
  • Convenience sampling

10. Which of the following can be reduced by proper interviewer training?

  • Neither sampling error nor measurement error
  • Sampling error
  • Both sampling error and measurement error
  • Measurement error

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