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Whiles a Case control study inspects individuals by outcome/disease status, a cohort study inspects
individuals by their ............ status.
a. health
b. exposure
c. medical
d. group ✔Correct Answer-b. exposure
To find a preventive initiative for a particular disease represents what in the PICO formula?
a. patients
b. intervention
c. comparison
d. outcome ✔Correct Answer-b. intervention
A good public health research hypothesis is formulated after data collection.
a. true
b. false ✔Correct Answer-b. false
The first step of the Evidence-Based Practice Model/Circle is
a. using the found evidence to take care of patient population
b. finding what is available
c. turning that question into a good search
d. knowing the right quesion to ask ✔Correct Answer-d. knowing the right quesion to ask
Animal or laboratory studies may involve humans.
a. true
b. false ✔Correct Answer-b. false
A survey study is an example of an experimental study.
a. true
b. false ✔Correct Answer-b. false
A Case-Control study involves identifying only patients with the outcome of interest.
a. true
b. false ✔Correct Answer-b. false
A good evidence-based research model formula may result in a high cost of disease preventive
methods.
a. true
b. false ✔Correct Answer-b. false
Population-Based Public Health Research Questions may involve the following except?
a. How much can patients pay for insurance?
,b. How does a hospital know which publich interventin to create to help target populations in their
communities?
c. How does a government agency know what the best policy is to pursue?
d. How do we keep the population healthier? ✔Correct Answer-a. How much can patients pay for
insurance?
All the following except ........................................, represent primary studies.
a. Cohort Studies
b. Case Control Studies
c. Randomized Controlled Trial
d. Meta-Analysis ✔Correct Answer-d. Meta-Analysis
A reported series of patients with specific COVID-19 infectious disease represent what study?
a. Case Report
b. Series Report
c. Series Cases
d. Observational ✔Correct Answer-a. Case Report
Choose all that apply to the appraisal step of the Evidence-Based Model of a public health problem.
a. How strong is the evidence?
b. What do you hope to accomplish
c. What is it you want to know?
d. What have you found? ✔Correct Answer-a. How strong is the evidence?
d. What have you found?
A statement systematically developed to assist clinicians and patients decisions about appropriate
health care for specific circumstances is called
a. Clinical Control Guidelines
b. Clinical Practice Control
c. Clinical Practice Guidelines
d. Clinical Control Study ✔Correct Answer-c. Clinical Practice Guidelines
To identify a public health problem involve by first
a. Assessing
b. Appraising
c. Asking
d. Acquiring ✔Correct Answer-a. Assessing
A large population-based dataset is required to reveal which factors can influence the outcome of
interest. Factors here can be referred to as?
a. Dependent Variables
b. Exposures
c. Independent Variables
d. Cases ✔Correct Answer-c. Independent Variables
In organizing your data, response coding makes it difficult to record answers and may also affect your
data analysis output.
a. true
b. false ✔Correct Answer-b. false
As part of documentation during data preparation methodology report include
,a. Only Sampling procedures
b. Only Limitations
c. Both sampling procedures and limitations
d. None of the above ✔Correct Answer-c. Both sampling procedures and limitations
A public health researcher is worried about whether all data entry for the zip code of each individual
patient in the data has five digits. What is the best approach to use to resolve this issue?
a. Checking the data type
b. Checking the data range
c. Checking the data size
d. Checking the data length ✔Correct Answer-d. Checking the data length
To determine what information to enter into a database requires a codebook.
a. true
b. false ✔Correct Answer-a. true
Data cleaning involves repeated cycles of screening, diagnosing, and
a. data collection
b. processing
c. analysis
d. treatment ✔Correct Answer-d. treatment
A public health researcher investigating COVID-19 infectious disease decided to create and prepare a
dataset for further analysis. How will you describe the activity of the researcher?
a. Data Analysis
b. Data Integration
c. Data Preparation
d. Data Collection ✔Correct Answer-c. Data Preparation
Not properly preparing your data before analysis may result in all, except
a. inaccurate result
b. starting analysis over
c. data errors
d. high confidence ✔Correct Answer-d. high confidence
Which of the following tools allows to bridge uncertainty between research methodology and
analysis?
a. data preparation
b. data analysis
c. data imputation
d. data manipulation ✔Correct Answer-a. data preparation
Select all that apply
Data preparation involves
a. Coding data
b. Analysing data
c. Ensuring data is free from error
d. Formating data ✔Correct Answer-a. Coding data
c. Ensuring data is free from error
d. Formating data
, Dr. Amir, an Epidemiologist researching people diagnosed with lung cancer decided to guess random
values to replace patients missing data. Dr. Amir's approach is correct for fixing problems of data
errors as a result of missing values.
a. true
b. false ✔Correct Answer-b. false
In data preparation, data cleaning ends once you start with the data analysis.
a. true
b. false ✔Correct Answer-b. false
Exporting data from an existing database is one of the ways to enter data into a database.
a. true
b. false ✔Correct Answer-a. true
In data entry, which of the following should be given the most consideration to enhance the data
preparation process?
a. variable description
b. data measurement
c. type of data
d. missing data ✔Correct Answer-d. missing data
A public health researcher is worried about whether all data entry for the date of diagnosis for breast
cancer in the data is within the acceptable format. What is the best approach to use to resolve this
issue?
a. checking the data type
b. checking the data range
c. checking the data length
d. checking the date frequency ✔Correct Answer-a. checking the data type
Every data collected and compiled for analysis should be replicable for other study purposes.
a. true
b. false ✔Correct Answer-a. true
All but one of the following is not a purpose for data cleaning.
a. minimize data error
b. minimize data size
c. eliminate data redundancy
d. increase data reliability ✔Correct Answer-b. minimize data size
To organize your data for analysis, which of the following provides a way to reference a question?
a. variable codes
b. question codes
c. response codes
d. coding ✔Correct Answer-b. question codes
A preprocessing error might occur in data as a result of
a. inputting 101 instead of 1001
b. data integration
c. data transformation
d. data recording ✔Correct Answer-c. data transformation