Exam 14: Data Analysis: Descriptive and Inferential Statistics

The nurse researcher opts to group frequency data using large interval widths in a research study.What problem should the researcher recognize might be encountered by using this type of interval widths?

How can a nurse researcher determine the assignment of a number to an object for measurement?

The nurse researcher is interested in estimating how reliably data can be used to generalize the findings of a study.Which type of data analysis should be used to allow this to occur?

The nurse researcher is interested in using nominal level data.Which object or event could be used if nominal-level data are of primary interest?

In a study of women's adjustment to breast cancer,the youngest participant was 23 years old and the oldest participant was 89 years old.How should the nurse researcher interpret this data?

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

When would a nurse researcher opt to use measures of central tendency?

Why would a nurse researcher opt to use factor analysis?

Which measures of central tendency allow for rank ordering with equal intervals? (Select all that apply).

Which statements regarding measures of central tendency are accurate? (Select all that apply.)

The nurse researcher opts to use interval-level data.What will be the researcher's primary concern if this level of data is used?

The nurse researcher finds that the data include a score reported to be in the 75th percentile.How should the researcher interpret this?

Which characteristic is an essential criterion for categorizing an object,event,or fact as nominal level data? (Select all that apply.)

The nurse researcher determines that a correlation exists between two variables.How should the researcher interpret this information?

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

An instrument produced a correlation coefficient: r = 0.49,p = 0.04.How would a nurse researcher interpret the magnitude of this correlation?

What conclusion can be drawn from statistics that indicate the mean nursing salary in a specific city is $55,000,the range is $38,000 to $78,000,the median salary is $58,000,and the mode is $56,000?

The nurse researcher is interested in describing the assignment of numbers to objects or events.How can this be best achieved?

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

Which data measurement scales typically use nonparametric tests of significance? (Select all that apply.)