GCU BIO550 2019 MAY Week 4 Epidemiologic Study Design Quiz Latest

BIO550 Epidemiology

Week 4 Epidemiologic Study Design Quiz

To show causality, researchers must use a/an ______________ study design.

 Experimental

 Observational

 Cohort

 Case-control

 Cross-sectional

2The Texas Men's Health Study enrolled 38,649 men in 1999 and collected exposure and lifestyle information to assess the relationship between these factors and subsequent occurrence of heart disease, is an example of which type of study?

 Experimental study

 Observational study

 Cohort study

 Case study

 Cross-sectional study

3Clinical trials occur under very specialized, controlled conditions that do not represent everyday life. Generalizing the results obtained in this environment to populations not engaged in the research is a concern for this type of study.

 True   False

4Suppose you want to know the effects of cocaine use by pregnant women on their babies. What would be the most appropriate method for studying this?

 Experimental

 Observational

 Cohort

 Case-control

 Cross-sectional

5What study design is very useful for rare diseases that require many years to develop and many people to observe?

 Experimental

 Observational

 Cohort

 Case-control

 Cross-sectional

6Surveys are not very good at capturing practices and health conditions of populations.

 True   False

7A study design that involves measuring the same participants over some period of time is a_________ study.

 Cross-sectional

 Quasi-developmental

 Experimental

 Cohort

 Case-control

8Compared to cohort studies, case-control studies are __________ and _________ to do.

 Hard/fast

 Well-organized/difficult

 Conceptual/hard

 Fast/cheap

9A study in which adults are randomly assigned to receive either a newly formulated heart medication or the currently available heart medication and are followed to monitor for the effectiveness of each medication is a/an:

 Experimental study

 Case study

 Cohort study

 Case-control study

 Cross-sectional study

10One advantage to using a cohort study is that results of the study can be retrieved quickly.

 True   False

11Which of the following comparisons between the case-control study design and the cohort study design is correct?

 The case-control design is better for studying rare exposures than the cohort design.

 The case-control design is more expensive than the cohort design.

 The case-control design is better for studying rare diseases than the cohort design.

 The case-control design is better for determining disease incidence than the cohort design

 The case-control design is less prone to recall bias than the cohort design.

12Cohort Studies generally look at which of the following?

 Determining the sensitivity and specificity of diagnostic methods

 Identifying patient characteristics or risk factors associated with a disease or outcome

 Variations among the clinical manifestations of patients with a disease

 The impact of blinding or masking a study population

13One of the key features of analytic epidemiology is:

 Use of an appropriate comparison group

 Laboratory confirmation of the diagnosis

 Publication in a peer-reviewed journal

 Statistical analysis using logistic regression

14Jacob is interested in whether the mere presence of others affected individual behavior. For his study, individuals were brought in and asked to make a speech to either an empty room or a room with five people in it. This type of study is best described as a/an:

 Experimental study

 Naturalistic observation

 Case study

 Cohort study

 Cross-sectional

15A researcher examines the injuries received in auto accidents in a group of males who are intoxicated while driving compared to another group that is not. The incidence of automobile wrecks is found for both groups at 1 and 5 years respectively. This is an example of a/an ________ study.

 Experimental

 Observational

 Cohort

 Case-control

 Cross-sectional

16Which of the following refers to an in-depth study of one individual?

 Experimental study

 Naturalistic observation

 Case study

 Cohort study

17A teacher would like to identify students' attitudes about using calculators to complete math assignments. Which of the following research methods would be most appropriate?

 Case study

 Laboratory observation

 Standardized test

 Questionnaire

18Several disadvantages to using cohort studies may exist. Which of the following statements is incorrect?

 It may take many years to detect changes in the groups

 Researchers may be tempted to decrease the length of the study due to the time involved

 Participants may drop out of the study as time passes

 Cohort studies may be very costly

19Which study design involves the simultaneous comparison of individuals of different ages?

 Cross-sectional study

 Longitudinal study

 Sequential study

 Experimental study

20Dr. Zell is interested in studying how reflexes change throughout the lifespan. He decides to study seven different age groups at the same point in time. Dr. Zell is using a:

 Cohort design

 Cross-sectional design

 Longitudinal design

 Sequential design

21In descriptive epidemiology our objective is to:

 Describe the population

 Describe the data we collected

 Infer something about the population

 Compute an average

22A(n) _____ study is loosely structured and designed to investigate and provide further understanding of a subject matter.

 Formal

 Causal

 Exploratory

 Experimental

 Descriptive

23Which of the following is most likely to be an experimental study?

 A study of the maternal characteristics of successful elementary school teachers

 A study that compares the blood pressure readings of drivers and passengers

 A study to determine if employers give more sociable employees higher ratings

 A study to find out if implementing group projects will increase GPAs

24One of the strengths of a longitudinal design is that:

 It eliminates generation effects completely

 Data can be collected quickly and inexpensively

 You can see developmental changes in behavior more clearly

 Both b and c

 All of the above

25Which of the following is true of cross-sectional studies:

 The cross sectional study is the best study design for assessing the causes of diseases.

 The cross sectional study must be done in person.

 The cross sectional study can assess for an association between exposure and disease.

 The cross sectional study is the best study design for determining disease incidence.

 The cross sectional study is the most expensive study design.