WGU C207 Data Driven Decision Making
ACTUAL Exam Questions and CORRECT
Answers
Frame the Problem, Solving the Problem and Communicating Results are part of which
decision making model? - CORRECT ANSWER✔✔- Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - CORRECT
ANSWER✔✔- Framing the problem
In which stage of the Davenport-Kim model is data collection? - CORRECT ANSWER✔✔-
Solving the problem
What is a key reason we study statistics? - CORRECT ANSWER✔✔- To make informed
decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
CORRECT ANSWER✔✔- Communicating the results
When does research fail to produce reliable results? - CORRECT ANSWER✔✔- Poor
research validity
What are the two major issues surrounding research standards? - CORRECT ANSWER✔✔-
Best practices and ethics
In order to be a statistically valid sample, the sample must be: - CORRECT ANSWER✔✔-
The appropriate size and random
Not selecting a random sample is what type of bias? - CORRECT ANSWER✔✔-
Measurement
Not selecting a right sized sample is what type of bias? - CORRECT ANSWER✔✔-
Measurement
,Research best practices eliminate... - CORRECT ANSWER✔✔- Bias
Outliers create this type of error - CORRECT ANSWER✔✔- Out-of Range
Unpredictable error - CORRECT ANSWER✔✔- Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - CORRECT
ANSWER✔✔- Omission Error - Distorted results
This error repeats itself - CORRECT ANSWER✔✔- Systematic Error - Skewed results
Observation points that are distant from other observations. - CORRECT ANSWER✔✔-
Outliers Note: Can be included or excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample - CORRECT
ANSWER✔✔- Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected. -
CORRECT ANSWER✔✔- Conscious bias (key word: benefit)
Consistent and repeatable data - CORRECT ANSWER✔✔- Reliable
Resulting from accurate measurements - CORRECT ANSWER✔✔- Valid data
If a responder lies on their survey, this creates what type of bias? - CORRECT
ANSWER✔✔- Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very
bottom of the column - CORRECT ANSWER✔✔- Omission or Out-of-Range
, An error that will fix itself over time - CORRECT ANSWER✔✔- Random
An error that will not fix itself. You must do something - CORRECT ANSWER✔✔-
Systematic
Cleaning and organizing data - CORRECT ANSWER✔✔- Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or
communication style - CORRECT ANSWER✔✔- Qualitative
A study used when you a conditions can't be controlled - CORRECT ANSWER✔✔-
Observational study
Observes people going forward in time from the time of their entry into the study. -
CORRECT ANSWER✔✔- Cohort Study
What are the three elements of an experimental study? - CORRECT ANSWER✔✔- Unit,
Treatment, Response
Accurately measures what it is intended to measure - CORRECT ANSWER✔✔- Valid data
________ an experimental study prevents bias. - CORRECT ANSWER✔✔- Blinding
Neither the treatment allocator nor the participant knows in which group the participant is
contributing. (Who is getting the real drug?) - CORRECT ANSWER✔✔- Double blind
study
The participants are not told if they are in the treatment group or control group - CORRECT
ANSWER✔✔- Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation,
range.... - CORRECT ANSWER✔✔- Descriptive analytics
ACTUAL Exam Questions and CORRECT
Answers
Frame the Problem, Solving the Problem and Communicating Results are part of which
decision making model? - CORRECT ANSWER✔✔- Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - CORRECT
ANSWER✔✔- Framing the problem
In which stage of the Davenport-Kim model is data collection? - CORRECT ANSWER✔✔-
Solving the problem
What is a key reason we study statistics? - CORRECT ANSWER✔✔- To make informed
decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
CORRECT ANSWER✔✔- Communicating the results
When does research fail to produce reliable results? - CORRECT ANSWER✔✔- Poor
research validity
What are the two major issues surrounding research standards? - CORRECT ANSWER✔✔-
Best practices and ethics
In order to be a statistically valid sample, the sample must be: - CORRECT ANSWER✔✔-
The appropriate size and random
Not selecting a random sample is what type of bias? - CORRECT ANSWER✔✔-
Measurement
Not selecting a right sized sample is what type of bias? - CORRECT ANSWER✔✔-
Measurement
,Research best practices eliminate... - CORRECT ANSWER✔✔- Bias
Outliers create this type of error - CORRECT ANSWER✔✔- Out-of Range
Unpredictable error - CORRECT ANSWER✔✔- Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - CORRECT
ANSWER✔✔- Omission Error - Distorted results
This error repeats itself - CORRECT ANSWER✔✔- Systematic Error - Skewed results
Observation points that are distant from other observations. - CORRECT ANSWER✔✔-
Outliers Note: Can be included or excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample - CORRECT
ANSWER✔✔- Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected. -
CORRECT ANSWER✔✔- Conscious bias (key word: benefit)
Consistent and repeatable data - CORRECT ANSWER✔✔- Reliable
Resulting from accurate measurements - CORRECT ANSWER✔✔- Valid data
If a responder lies on their survey, this creates what type of bias? - CORRECT
ANSWER✔✔- Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very
bottom of the column - CORRECT ANSWER✔✔- Omission or Out-of-Range
, An error that will fix itself over time - CORRECT ANSWER✔✔- Random
An error that will not fix itself. You must do something - CORRECT ANSWER✔✔-
Systematic
Cleaning and organizing data - CORRECT ANSWER✔✔- Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or
communication style - CORRECT ANSWER✔✔- Qualitative
A study used when you a conditions can't be controlled - CORRECT ANSWER✔✔-
Observational study
Observes people going forward in time from the time of their entry into the study. -
CORRECT ANSWER✔✔- Cohort Study
What are the three elements of an experimental study? - CORRECT ANSWER✔✔- Unit,
Treatment, Response
Accurately measures what it is intended to measure - CORRECT ANSWER✔✔- Valid data
________ an experimental study prevents bias. - CORRECT ANSWER✔✔- Blinding
Neither the treatment allocator nor the participant knows in which group the participant is
contributing. (Who is getting the real drug?) - CORRECT ANSWER✔✔- Double blind
study
The participants are not told if they are in the treatment group or control group - CORRECT
ANSWER✔✔- Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation,
range.... - CORRECT ANSWER✔✔- Descriptive analytics
