# Health Information Analysis And Presentation

56 Questions | Total Attempts: 43  Settings  .

• 1.
This term describes the degree of conformity of a measured or calculated quantity to its actual (true) value.
• A.

Variance

• B.

Accuracy

• C.

Precision

• D.

Outlier

• 2.
Which of the following is TRUE about Standard Deviation?
• A.

The more spread apart the data, the higher the deviation.

• B.

A value much greater or much less than the others in a data set

• C.

The more spread apart the data, the lower the deviation.

• D.

The narrower spread apart the data, the higher the deviation.

• 3.
Which one of the following is a calculation of practical significance for two measurement variables.
• A.

Cohen's difference

• B.

% difference between

• C.

Pearson's r

• D.

Raw difference

• 4.
A situation in which the values of variables occur at irregular frequencies and the mean, median and mode occur at different points.
• A.

Right Skewed Distribution

• B.

Symmetrical Distribution

• C.

Left Skewed Distribution

• D.

Asymmetrical Distribution

• 5.
How does outliers effect range in a set of data?
• A.

Best statistic equipped to deal with outliers, in that they are, mostly, unaffected by it.

• B.

If the outlier is high or low, it causes the mean to be high or low and makes it unreliable.

• C.

Greatly affected by outliers, as it can change the actual calculations by extreme numbers, up or down.

• D.

None of the Above

• 6.
An outbreak or the spread of disease that is observed at higher than normal frequency is known as a/an:
• A.

Endemic

• B.

Epidemic

• C.

Pandemic

• D.

None of the above

• 7.
Epidemiology plays an integral role in:
• A.

Disease prevention

• B.

Health promotion

• C.

Both a and b

• D.

None of the above

• 8.
The scientific method of research:
• A.

Is a step-by-step approach

• B.

Reduces bias in studies

• C.

Increases the validity and reliability of the study

• D.

All of the above

• 9.
Bias is:
• A.

The conscious and unconscious error

• B.

That all people and ideas are fairly distributed

• C.

The random selection of population in a study

• D.

None of the above

• 10.
The ability to consistently measure what we think we are measuring is:
• A.

Validity

• B.

Reliability

• C.

Internal validity

• D.

External validity

• 11.
Studies designed to be internally valid:
• A.

Show a cause-effect relationship in the sample or population studied.

• B.

Can be generalized to a broader, more general population.

• C.

Produce unbiased inferences or conclusions about a target population.

• D.

All of the above

• 12.
One of the largest publicly available databases of medical literature is:
• A.

PubMed

• B.

• C.

MeSH

• D.

Proquest

• 13.
Quantitative methods of research:
• A.

Look for associations between interventions and outcomes.

• B.

Involve the measurement and description of variables

• C.

Include variables such as sex, age, height and weight.

• D.

All of the Above

• 14.
Which approach is most commonly used in a study design?
• A.

Qualitative

• B.

Quantitative

• C.

Mixed

• D.

None of the above

• 15.
The two main study design strategies used in research studies are:
• A.

Correlational and cross sectional studies

• B.

Descriptive and analytic studies

• C.

Cohort and case control studies

• D.

Case reports and case series

• 16.
Which best describes a correlational study?
• A.

It uses data from entire populations to compare disease frequencies between same/different groups during the same or different points in time.

• B.

It cannot be used to test a hypothesis because of a number of limitations.

• C.

It consists of the carefully detailed report by one or more clinicians of the profile of a single patient.

• D.

Both a and b.

• 17.
In a cohort study, the investigator selects a group of exposed individuals and a group of non exposed individuals and:
• A.

Follows both groups prospectively to compare the incidence of disease.

• B.

Follows both groups retrospectively to compare the prevalence of disease.

• C.

Is a part of observational studies which comes under analytical studies.

• D.

Both a and c

• 18.
A retrospective cohort study:
• A.

Is referred to as a non-concurrent study.

• B.

Can reduce the time required to under take the study.

• C.

Can increase the time required to undertake the study.

• D.

Both a and b.

• 19.
Incidence of disease can be defined as the number of:
• A.

New cases in a given population over a given time period

• B.

Persons exposed to the risk during the time period

• C.

Existing cases at a single point in time

• D.

Both a and b

• 20.
Comparing the incidence of disease in persons with exposure to the incidence of disease in persons without the exposure is called:
• A.

Relative risk of disease

• B.

Control

• C.

Cases

• D.

Sampling bias

• 21.
In a study example where looking at the effects of caffeine on newborns' birth weight, caffeine is:
• A.

The outcome or the dependent variable

• B.

Exposure or independent variable

• C.

Confounding variable

• D.

None of the above

• 22.
The mode for the following data; 2,2,1,5,9,7,5,4,3
• A.

3

• B.

1

• C.

9

• D.

2

• 23.
Used to compare parts to the whole
• A.

Pie graphs

• B.

Scatter plot

• C.

Line graphs

• D.

Bar charts

• 24.
Used to show a relationship or correlation between two variables and how they interact with each other in either a positive ornegative relationship
• A.

Line graphs

• B.

Scatter plot

• C.

Pie graphs

• D.

Bar charts

• 25.
Which of the following is NOT an Elements of data analysis?
• A.

Data preparation

• B.

Data Modeling

• C.

Data exploration

• D.

Data Statistical

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