Quiz From Study Designs to Descriptive Statistics

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Liberty University *

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Feb 20, 2024

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Quiz: From Study Designs to Descriptive Statistics Due   Jan 28 at 11:59pm   Points   75   Questions   50   Time Limit   None Instructions The quiz: Covers the  Learn/Textbook  material from  Module 1: Week 1 - Module 2: Week 2 Contains  50 multiple choice and true/false  questions. No time limits. Allows 1 attempt  and that attempt will count towards the grade. Is  worth 75 points. Submit this assignment by 11:59 p.m. (ET) on Sunday of Module 2: Week 2. Attempt History Attempt Time Score LATEST Attempt 1 45 minutes 75 out of 75 Correct answers are hidden. Score for this quiz: 75 out of 75 Submitted Jan 26 at 2:04pm
This attempt took 45 minutes. Question 1 1.5 / 1.5 pts A design that is a very detailed report of the specific features of a particular participant or case is known as? Per protocol design Case report Cross-sectional design Quasi-experimental design Question 2 1.5 / 1.5 pts The most appropriate study design depends, among other things, on the distribution of The outcome in the population of interest The risk factor in the population of interest & The outcome in the population of interest The participants The risk factor in the population of interest Question 3 1.5 / 1.5 pts
In a study measuring the frequency of pain scores of patients on a scale from 1 to 10 for a specific type of pain relief therapy, the pain score variable would best be described as which type of variable? Dichotomous variable Ordinal variable Continuous variable Categorical variable Question 4 1.5 / 1.5 pts A fungal meningitis outbreak has been traced back to a particular compound pharmacy selling a specific injectable drug that is suspected to have been contaminated. In the past 4 weeks 15,051 patients were given the medication, and of those patients 72 individuals contracted fungal meningitis. What is the cumulative incidence for meningitis among those individuals who the medication was administered to? 0.0478 0.0048 0.4783 0.1478 Question 5
1.5 / 1.5 pts Five hundred people are enrolled in a 10-year cohort study. At the start of the study, 50 have diagnosed CVD. Over the course of the study, 40 people who were free of CVD at baseline develop CVD. The prevalence of CVD at 10 years is 10% True False Question 6 1.5 / 1.5 pts A study that is conducted at a single point in time is known as: A cohort study A randomized-controlled Trial A cross-sectional study A clinical trial Question 7 1.5 / 1.5 pts Among individuals who eat a healthy diet and exercise frequently the point prevalence of hypertension is 0.09. Individuals subject to poverty, making it more difficult for them to eat a healthy diet and exercise frequently, have a 0.31 point prevalence for hypertension. What is the risk difference between the two groups? 0.78
0.76 0.29 0.22 Question 8 1.5 / 1.5 pts The best numerical summaries for dichotomous, ordinal, and categorical variables are relative frequencies. True False Question 9 1.5 / 1.5 pts Incidence of disease is the proportion of individuals with the condition (disease) at a single point in time True False Question 10 1.5 / 1.5 pts The following data were collected as part of a study of tea consumption among undergraduate students in England. The following reflect cups per day consumed: 5 7 6 9 4 1 2 2
According to the data they are no outliers. True False Question 11 1.5 / 1.5 pts Calculate the point prevalence for Alzheimer’s disease among individuals 65 years of age or older in a county that has 200,000 individuals who are 65 years of age or older, if 22,223 individuals who are 65 years of age or older have the disease. 0.9889 0.1111 0.0111 0.8889 Question 12 1.5 / 1.5 pts Which type of study design can assess temporal relationship? A case control study A cross over trial A cohort study
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