EPI 522 Midterm Quiz Summary- Rush University 2023/24

EPI 522 Midterm Quiz Summary- Rush University 2023/24 Height recorded in centimeters should be displayed using SELECT ALL THAT APPLY Bar chart. Box-and-whisker plot. Stem-and-leaf plot. Histogram. Question 2 The dependent variable is The intervention being studied. The experiemental variable. The variable manipulated by the researcher. The outcome variable. Question 3 A student is planning on conducting a quality improvement project on a unit in the university hospital where the student is enrolled. Since the project is required by the university and the university owns the hospital, the student does not need to obtain additional permission for the project. True False Question 4 The best way to determine whether data are normally distributed is to Construct a box-and-whisker plot with Tukey fences. Construct a histogram. Perform a Shapiro-Wilk test. Perform a test for outliers. Question 5 Outliers can be identified using a (SELECT ALL THAT APPLY) Box-and-whisker plot with Tukey fences. Histogram. Stem-and-leaf plot. Bar chart. Any/all of the above. Question 6 When reporting the mean for a variable, what measure of spread should be reported? The statistical range The standard deviation The interquartile range Any/all of the above would be appropriate. Question 8 A nurse practitioner student is completing his final practicum in the outpatient clinic of the health care organization that is part of the university. As a part of the course requirements for the final term, the student must complete a quality improvement project. The student decides to examine whether the staff routinely assess vaccination status for healthy adults. Since this is a quality improvement project for the clinic and a course requirement for the student, does the student need any additional approvals to review patient records for this project? No, only research projects require approval. Yes, the student needs to obtain appropriate permission to examine the data. No, this is a required student project and it is being conducted at the student's own university medical center. Yes, the student's project must undergo a full IRB review and approval. Question 9 The mean is the number in the middle of the observations, when the observations are arranged from smallest to largest. True False Question 10 What is the median of the following set of numbers? 9, 1, 8, 5, 3, 10, 4, 12, 8, 7 5 6 7 7. 5 8 Question 11 The validity of a weight measurement obtained with an electronic scale refers to the repeatability of the measurement. True False Question 12 The operational definition of a variable Explains what the variable means. Specifies the precision of the measurements. Describes the validity of the variable. Specifies how a variable should be measured. Question 13 In a box-and-whisker plot, the length of the box is equal to the Midrange. Epidemiological range. Statistical range. Interquartile range. Question 14 A study can have only one dependent variable. True False Question 15 A variable was coded as disease present, disease not present, or disease status unknown. When performing the descriptive statistics, which ofthat thesame measurement when the same variable is measured multiple times is an example following should be used? SELECT ALL THAT APPLY of Accuracy. Validity. Reliability. All of the above Question 18 Quality of life is measured on a scale from 1 (extremely poor quality) to 5 (best possible quality). The best graphic display of these measurements would be a Bar chart. Stem-and-leaf plot. Box-and-whisker plot. Histogram . . . . . . . . . ..