GCU BIO550 Week 4 Epidemiologic Study Design Quiz Question # 00602323 Course Code : BIO550 Subject: Biology Due on: 06/20/2019 Posted On: 06/20/2019 08:26 AM Tutorials: 1 Rating: 4.6/5

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

Experimental

Observational

Cohort

Case-control

Cross-sectional

2 The 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

3 Clinical 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

4 Suppose 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

5 What 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

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

True False

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

Cross-sectional

Quasi-developmental

Experimental

Cohort

Case-control

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

Hard/fast

Well-organized/difficult

Conceptual/hard

Fast/cheap

9 A 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

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

True False

11 Which 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.

12 Cohort 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

13 One 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

14 Jacob 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

15 A 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

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

Experimental study

Naturalistic
observation

Case study

Cohort study

17 A 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

18 Several 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

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

Cross-sectional study

Longitudinal study

Sequential study

Experimental study

20 Dr. 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

21 In descriptive epidemiology our objective is to:

Describe the
population

Describe the data we
collected

Infer something about
the population

Compute an average

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

Formal

Causal

Exploratory

Experimental

Descriptive

23 Which 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

24 One 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

25 Which 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.