The nurse researcher is determining which inferential procedure ...

[AEWBW]

The nurse researcher is determining which inferential procedure to use to analyze study data. Which questions will the nurse answer to make this determination? Standard Text: Select all that apply.
 
  1. What level of measurement is present?
  2. What is the sample size?
  3. Are the data significant?
  4. Was the null hypothesis rejected?
  5. How many sets of scores are being analyzed?

Question 2

Select the statement that is accurate about the power of a statistical test.
 
  1. The more powerful a test is, the less likely it is to reject the null hypothesis when it is false.
  2. The power of the test increases with smaller sample sizes.
  3. A one-tailed test is more powerful than a two-tailed test.
  4. The power of the test decreases as the level of significance increases.

[thall411]

Answer to Question 1

1, 2, 5
Rationale 1: Level of measurement helps to determine which statistical test can be used to analyze data.
Rationale 2: The size of the sample is a determinant in the choice of statistical test.
Rationale 3: The analysis is done to determine if the data are significant.
Rationale 4: Whether the null hypothesis is rejected will be determined by analyzing study data.
Rationale 5: The number of sets of scores is a determinant of which test is applicable to the data collected.
Global Rationale:

Answer to Question 2

3
Rationale 1: The power of a statistical test is defined as the ability of the test to reject a null hypothesis when it is false.
Rationale 2: The larger the sample size chosen, the more powerful the statistical test will be.
Rationale 3: This is a true statement.
Rationale 4: The higher the level of significance that is selected, the more power the statistical test will have.
Global Rationale: