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BBH 440: Exam #4 Questions With Correct Answers.

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  • BBH 440

BBH 440: Exam #4 Questions With Correct Answers. A researcher conducts a survey that is used to find the prevalence of HPV in the United States. Based on this information alone, this is what type of research: - answerDescriptive A researcher publishes a case series that describes 18 cases of a ...

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  • October 15, 2024
  • 24
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BBH 440
  • BBH 440
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sirjoel
©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM



BBH 440: Exam #4 Questions With Correct
Answers.


A researcher conducts a survey that is used to find the prevalence of HPV in the United States.

Based on this information alone, this is what type of research: - answer✔Descriptive


A researcher publishes a case series that describes 18 cases of a previously unknown disease.

Based on the information in the case series, the author concludes that the disease is caused by

excessive sun exposure. Disregarding any of the potential details of the case series, is the

researcher able to make this conclusion? - answer✔No


One important finding from the Doll and Hill Physician's Study was that as the number of

cigarettes smoked increased, there was greater risk for lung cancer mortality. This is an example

of which of Bradford Hill's criteria of causality? - answer✔Dose Response


A research group is interested in studying the relationship between episodes of anger and heart

attacks. They find a group of people who have had heart attacks and ask them whether they

experienced an episode of anger in the 2 hours before their heart attack. They also ask them if

they experienced an episode of anger in another 2-hour period the week before having a heart

attack. This is what type of study? - answer✔case-crossover study

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


A research group conducts a study to examine the relationship between unemployment and drug

use. They get unemployment numbers from state governments for 6 states and they obtain

numbers regarding number of drug arrests in those same 6 states. They find a positive correlation

between unemployment and drug arrests. They conclude that being unemployed makes it more

likely someone will use and/or be arrested for drug use. Is the logic they used accurate? -

answer✔No


After analyzing some data from a study, a researcher finds that having grey hair is positively

correlated with the likelihood of having cardiovascular disease. The researcher hypothesizes that

grey hair causes cardiovascular disease. The real explanation here is likely: - answer✔There is a

common causal variable

A researcher is interested in studying the relationship between alcohol intake and type 2 diabetes.

Out of a sample of 500 people, she forms one group consisting of people who have type 2

diabetes and another consisting of people who don't. Then she gathers information about their

alcohol intake. This is what type of study? - answer✔Case-control


Researchers are conducting a study to examine the potential relationship between physical

activity and obesity in adolescents. They conduct a survey asking college students to report the

number of minutes of moderate to vigorous physical activity in a typical week and self-reported

height and weight to compute BMI. What type of bias is most likely to affect their results? -

answer✔Non-response bias; OR recall bias

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


Which of the following is true about surveillance studies? - answer✔Sentinel surveillance can

alert officials of a problem in a healthcare system


Descriptive studies can only be observational studies. - answer✔True


Which of the following would be the best study to use if you wanted to be able to confidently say

one variable causes another variable to change? - answer✔prospective cohort study


Which of the following is NOT a reason to conduct a triple-blind study? - answer✔Reduces the

bias in selecting participants

A researcher wants to test the effectiveness of billboards in increasing HPV vaccination rates.

She chooses two cities and gets statistics on HPV vaccine rates for a 3 month period. Then she

puts pro-HPV vaccine billboards up in one city (but not the other) for 3 months. Finally, she

compares statistics on HPV vaccine rates again after the intervention. This is what type of study?

- answer✔community trial


To test the effects of exercise on memory, a group of participants are asked to do yoga before a

memory test one day and then to jog before a memory test the next day. Each participant's

memory score is compared after doing yoga to after jogging. This is what type of design? -

answer✔within-subjects


A research group is interested in studying the relationship between pesticide exposure and

neurological disorders. They identify a group of people who have had high levels of pesticide

exposure and another who had no pesticide exposure. They then follow-up with them every year

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