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BBH 101 FINAL EXAM WITH CORRECT ANSWERS
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BBH 101 FINAL EXAM WITH CORRECT ANSWERS
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BBH 101 FINAL EXAM WITH CORRECTANSWERS
Researchers want to investigate the relationship between drinking energy drinks and blood
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pressure. They recruit a sample of 100 participants and randomly assign 50 of them to group
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A and 50 of them to group B. Blood pressure is measured in both groups. Then participants
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of group A drink an energy drink and participants in group B drink a placebo drink. Blood
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pressure is then measured again and the pre- and post-drink measurements are compared.
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This is what type of study? - ANSWER: ➡ Experimental
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A ___________ is a research design that, by definition, involves simply describing a small group
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of patients who all have a similar diagnosis or collection of symptoms. - ANSWER: ➡ case
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series
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In an experimental study, one group is given a new pharmaceutical drug and another group is
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given a placebo. The group given the placebo is referred to as what? - ANSWER: ➡ control
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group
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Using a case-control study design, researchers find a relative risk of 5.0 describes the
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relationship between having a high-stress occupation and hypertension. This means that: -
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ANSWER: ➡ those with a high-stress occupation were 5 times more likely to have
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hypertension
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Which of the following sounds like a description of a disease that would fit best under the
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biomedical model of health? - ANSWER: ➡ a person develops the disease when they are
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exposed to a pathogen (i.e. germ) that causes the disease
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After a few weeks of observation, I have come to believe that students on campus tend to
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walk faster when it is near a time that classes typically start (e.g. 9:05 AM, 1 PM) than when it
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is between class times. This is an example of a: - ANSWER: ➡ hypothesis
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, Researchers conduct a survey of elderly individuals residing at nursing homes throughout
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Pennsylvania. The researchers sit down with each participant one time and ask a series of
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questions about subjective well-being. The researchers use the survey data to write a report
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about the mental health of nursing home residents in the state. This is what type of study? -
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ANSWER: ➡ cross-sectional
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In the large-scale effort to replicate psychology publications discussed in the article "The
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Unscientific Method," how many of the studies were successfully replicated? - ANSWER: ➡ a
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little more than 1/3
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A group of investigators are interested in a hypothesized relationship between poor sleep
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and depression. They recruit a sample of participants; about half of them sleep an adequate
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amount each night and half of them have what is considered insufficient sleep (less than 6
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hours per night). None of the participants are depressed at the start of the study.
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Researchers follow-up with the participants over the next 5 years to determine if those who
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sleep an insufficient amount each night are more likely to become depressed. This is what
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type of study? - ANSWER: ➡ cohort
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The American Diabetes Association reports that there are 1.4 million new cases of diabetes
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diagnosed every year. This is a measure of the ______________ of diabetes. - ANSWER: ➡
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incidence
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Researchers are interested in studying the relationship between excessive caffeine intake
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and gastroesophageal reflux disease (GERD). They recruit a sample of individuals; about half
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of them have GERD and half do not. They then ask the participants about their caffeine intake
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and analyze the data to determine if individuals with GERD are more likely to drink large
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amounts of caffeine. What type of study is this? - ANSWER: ➡ case-control
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Which of the following study designs is best for demonstrating that one variable causes
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another? - ANSWER: ➡ experimental study
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Which of the following p-values represents a value that would typically be considered
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statistically significant? - ANSWER: ➡ .01
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