Question 21

0.25pts

What

type of group assignment method randomly assigns members of certain demographic

subgroups of people to an intervention group or control group?

Group

of answer choices

Block

randomization

Simple

randomization

Stratified

randomization

Cluster

randomization

Flag

question: Question 22

Question 22

0.25pts

I

ask participants to indicate on a scale of 1-5 their level of interest in

following politics.

The

level of this variable is:

Group

of answer choices

Nominal

Ordinal

Interval

Ratio

Flag

question: Question 23

Question 23

0.25pts

Cross-Sectional

and Case Control Studies both collect data at one time point.

Group

of answer choices

True

False

Flag

question: Question 24

Question 24

0.25pts

The

"gold standard" of research designs in terms of establishing

causality is the ________.

Group

of answer choices

Case-control

Quasi-experiment

Cross-sectional

Randomized

control trial

Flag

question: Question 25

Question 25

0.25pts

One

commonly-used type of control is a/an ________________, an inactive comparison

that is similar to the therapy being tested.

Group

of answer choices

experimental

group

placebo

blank

control

blinded

control

Flag

question: Question 26

Question 26

0.25pts

I

ask participants about their marital status as follows:

Are

you:

1.

Married

2.

Single (never married)

3.

Divorced

4.

Living with a partner

The

level of this variable is:

Group

of answer choices

Nominal

Ordinal

Interval

Ratio

Flag

question: Question 27

Question 27

0.25pts

Equipoise

means __________

Group

of answer choices

Random

assignment of participants

Sensitivity

and specificity of a test

Experimental

ethics

Experimental

bias

Flag

question: Question 28

Question 28

0.25pts

A

relationship in which higher levels of one variable are associated with lower

levels of another is best described as ____.

Group

of answer choices

positive

correlation

negative

correlation

curvilinear

correlation

accelerated

correlation

Flag

question: Question 29

Question 29

0.25pts

The

"entity" being studied in research, whether a neuron, a person, a

class, or a town, is best referred to as a(n) ____.

Group

of answer choices

participant

unit

of analysis

outcome

observational

target

Flag

question: Question 30

Question 30

0.25pts

I

collect data from a group of nurses who had a past history of smoking to

determine disease outcomes that might be related to smoking. This might be an

example of a:

Group

of answer choices

Case

study

Quasi-experiment

Retrospective

cohort study

Case-control

study

Flag

question: Question 31

Question 31

0.25pts

A/an

____________ perspective of researchingriskfor disease means that

the investigator is considering manylevels of influenceon a

people's lives.

Group

of answer choices

Pragmatic

Ecological

Experimental

Empirical

Flag

question: Question 32

Question 32

0.25pts

True

or False? The objective of a systematic review is to synthesize existing

knowledge.

Group

of answer choices

True

False

Flag

question: Question 33

Question 33

0.25pts

I

want to test if my brilliant new measurement instrument called a

"ruler" is valid so I compare measurements with another new

instrument called a "scale" to see if they are correlated. I am

testing for________.

Group

of answer choices

External

validity

Construct

validity

Content

validity

Criterion

validity

Flag

question: Question 34

Question 34

0.25pts

"If

you drive a car, what kind of car is it?" is an example of which

questionnaire error?

Group

of answer choices

Double

negatives

Faulty

assumptions

Vagueness

Leading

questions

Flag

question: Question 35

Question 35

0.25pts

The

ways in which questions are asked in a survey will influence which statistical

tests the researcher can calculate on the collected data.

Group

of answer choices

True

False

Flag

question: Question 36

Question 36

0.25pts

Systematic

error...

Group

of answer choices

is

also called "noise"

affects

all participants differently

has

no consistency

affects

the average of scores

Flag

question: Question 37

Question 37

0.25pts

A

researcher with strong quantitative skills would be required for what type of

research?

Group

of answer choices

Meta-analysis

Systematic

review

Case

studies

Qualitative

research

Flag

question: Question 38

Question 38

0.25pts

A

__________ is a display ofthe likelihood of studies missingfrom the

analysis because of publication bias.

Group

of answer choices

Funnel

plot

Cochran's

Q

Fixed

effects model

Forrest

plot

Flag

question: Question 39

Question 39

0.25pts

The

NHANES uses which sampling method?

Group

of answer choices

Simple

random sampling

Snowball

sampling

Cluster

probability sampling

Convenience

sampling

Flag

question: Question 40

Question 40

0.25pts

When

preparing slides for an oral presentation, the greatest number of slides should

be dedicated to which area of content?

Group

of answer choices

Research

goal

Background

Methods

Results

Flag

question: Question 41

Question 41

0.25pts

Poster

sessions were designed so that the presenter can speak to an audience without

having two-way dialogue.

Group

of answer choices

True

False

Flag

question: Question 42

Question 42

0.25pts

A

line graph is similar to a bar graph and is best used to display nominal data

descriptive statistics.

Group

of answer choices

True

False

Flag

question: Question 43

Question 43

0.25pts

When

writing up the results of research, it is important to ensure that limitations

of the study have been thoroughly concealed.

Group

of answer choices

True

False

Flag

question: Question 44

Question 44

0.25pts

The

_______________ for odds ratios and rate ratios provide information about how

well the test statistic captures the true value of that measure in the source

population.

Group

of answer choices

p

values

effect

sizes

measures

of association

confidence

intervals

Flag

question: Question 45

Question 45

0.25pts

Which

of the following is the process of correcting any typographical or other errors

in data files?

Group

of answer choices

Data

capture

Data

cleaning

Data

recoding

Data

security

Flag

question: Question 46

Question 46

0.25pts

For

ratio (continuous) variables with a normal distribution...

Group

of answer choices

the

median and interquartile range are often reported.

the

proportion/percentage of responses are reported

both

the mean and the standard deviation are typically reported.

a

pie chart is displayed

Flag

question: Question 47

Question 47

0.25pts

Statistical

procedures are typically reported in the results section of your research

article.

Group

of answer choices

True

False

Flag

question: Question 48

Question 48

0.25pts

The

methods section of a manuscript should provide information about ethical

considerations such as whether inducements were offered, how informed consent

was documented, whether community groups were consulted, and which research

ethics committees reviewed the project.

Group

of answer choices

True

False