NSG-522 Midterm Exam Study Questions and Answers with Complete Solutions Graded A 2024

The frequency and relative frequency presented as a percentage should both be reported when describing interval level data - False What type of graphic display would be the best for a variable measured at the ordinal data? - Histogram The operational definition of a variable - Specifies how a variable should be measured The epidemiological range is - the minimum and maximum values When reporting the mean for a variable, what measure of spread should be reported? - The standard deviation clinical data conducted can be shared to a cloud for all involved researchers to share/view - false The dependent variable - the outcome variable Outliers can be identified using a (SELECT ALL THAT APPLY) a. Box-and-whisker plot with Tukey Fences. b. Histogram. d. Stem-and-leaf plot. e. Bar chart. f. Any/all of the above - A. Box and whisker plot with Turkey fences The most frequently occurring number in a set of numbers is the a. Median b. Mode. c. Midrange d. Frequency e. 50th percentile - b. mode The decision to use the mean or median is based upon (Select all that apply) A. Whether the data are normally distributed b. Which statistical tests will be used for hypothesis testing c. The presence or absence of outliers d. The guidelines of the journal where the data will be published - A. Whether the data are normally distributed B. The presence or absence of outliers When a continuous variable has a normal distribution and only 1 small outlier, the mean and standard deviation should be used to describe the variable - False Match the following variables to the correct level of measurement (A. Interval, B. Nominal, C. Ratio, D. Ordinal) Temperature in Fahrenheit Presence or Absence of disease Weight in ounces Race Quality of life (1-5) Hemoglobin A1C Time in Minutes Level of education Oxygen Saturation Blood type - Temperature in Fahrenheit- A. Interval Presence or Absence of disease- B. Nominal Weight in ounces- C. Ration Race- B. Nominal Quality of life (1-5)- D. Ordinal Hemoglobin A1C- C. Ratio Time in Minutes- C. Ratio Level of education- D. Ordinal Oxygen Saturation- C. Ratio Blood type- B. Nominal A conceptual definition defines how a variable will be measured, and includes the equipment and procedures that are used in the measurement - False Testing a new piece of equipment to ensure that the equipment consistently provides that same measurement when the same variable is measured multiple times is an example of Accuracy Validity Reliability All of the above - Reliability Bar charts and histograms can both be used to describe interval level data - False All studies need appropriate permission to examine data - True The mean is the number in the middle of the observations, when the observations are arranged from smallest to largest. - False