WGU C207 Data-Driven Decision Making Exam Study Guide & Practice Test
Frame the Problem, Solving the Problem and Communicating Results are part of which decision making
model? - (answer)Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - (answer)Framing the problem
In which stage of the Davenport-Kim model is data collection? - (answer)Solving the problem
What is a key reason we study statistics? - (answer)To make informed decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
(answer)Communicating the results
When does research fail to produce reliable results? - (answer)Poor research validity
What are the two major issues surrounding research standards? - (answer)Best practices and ethics
In order to be a statistically valid sample, the sample must be: - (answer)The appropriate size and
random
Not selecting a random sample is what type of bias? - (answer)Measurement
Not selecting a right sized sample is what type of bias? - (answer)Measurement
Research best practices eliminate... - (answer)Bias
Outliers create this type of error - (answer)Out-of Range
Unpredictable error - (answer)Random Error - No correlation
,WGU C207 Data-Driven Decision Making Exam Study Guide & Practice Test
Error may occur from missing data. (Example: Space not filled in) - (answer)Omission Error - Distorted
results
This error repeats itself - (answer)Systematic Error - Skewed results
Observation points that are distant from other observations. - (answer)Outliers Note: Can be included or
excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample - (answer)Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected. -
(answer)Conscious bias (key word: benefit)
Consistent and repeatable data - (answer)Reliable
Resulting from accurate measurements - (answer)Valid data
If a responder lies on their survey, this creates what type of bias? - (answer)Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very bottom of
the column - (answer)Omission or Out-of-Range
An error that will fix itself over time - (answer)Random
An error that will not fix itself. You must do something - (answer)Systematic
Cleaning and organizing data - (answer)Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or communication
style - (answer)Qualitative
, WGU C207 Data-Driven Decision Making Exam Study Guide & Practice Test
A study used when you a conditions can't be controlled - (answer)Observational study
Observes people going forward in time from the time of their entry into the study. - (answer)Cohort
Study
What are the three elements of an experimental study? - (answer)Unit, Treatment, Response
Accurately measures what it is intended to measure - (answer)Valid data
________ an experimental study prevents bias. - (answer)Blinding
Neither the treatment allocator nor the participant knows in which group the participant is contributing.
(Who is getting the real drug?) - (answer)Double blind study
The participants are not told if they are in the treatment group or control group - (answer)Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation, range.... -
(answer)Descriptive analytics
Uses data from t he past to predict the future - (answer)Predictive
Uses experimental design and optimization to predict a future - (answer)Prescriptive
If we move to six appointments an hour we can increase revenue 2%. Which form of analytics is this? -
(answer)Prescriptive - We are taking a specific course of action
Based on the last four quarters, we can predict $4,1 million in sales next quarter. Which form of
analytics is this? - (answer)Predictive: We aren't taking any action
Frame the Problem, Solving the Problem and Communicating Results are part of which decision making
model? - (answer)Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - (answer)Framing the problem
In which stage of the Davenport-Kim model is data collection? - (answer)Solving the problem
What is a key reason we study statistics? - (answer)To make informed decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
(answer)Communicating the results
When does research fail to produce reliable results? - (answer)Poor research validity
What are the two major issues surrounding research standards? - (answer)Best practices and ethics
In order to be a statistically valid sample, the sample must be: - (answer)The appropriate size and
random
Not selecting a random sample is what type of bias? - (answer)Measurement
Not selecting a right sized sample is what type of bias? - (answer)Measurement
Research best practices eliminate... - (answer)Bias
Outliers create this type of error - (answer)Out-of Range
Unpredictable error - (answer)Random Error - No correlation
,WGU C207 Data-Driven Decision Making Exam Study Guide & Practice Test
Error may occur from missing data. (Example: Space not filled in) - (answer)Omission Error - Distorted
results
This error repeats itself - (answer)Systematic Error - Skewed results
Observation points that are distant from other observations. - (answer)Outliers Note: Can be included or
excluded in analysis (causes skewness)
Types of Bias: Bias that occurs from not selecting a random sample - (answer)Measurement bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if selected. -
(answer)Conscious bias (key word: benefit)
Consistent and repeatable data - (answer)Reliable
Resulting from accurate measurements - (answer)Valid data
If a responder lies on their survey, this creates what type of bias? - (answer)Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the very bottom of
the column - (answer)Omission or Out-of-Range
An error that will fix itself over time - (answer)Random
An error that will not fix itself. You must do something - (answer)Systematic
Cleaning and organizing data - (answer)Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or communication
style - (answer)Qualitative
, WGU C207 Data-Driven Decision Making Exam Study Guide & Practice Test
A study used when you a conditions can't be controlled - (answer)Observational study
Observes people going forward in time from the time of their entry into the study. - (answer)Cohort
Study
What are the three elements of an experimental study? - (answer)Unit, Treatment, Response
Accurately measures what it is intended to measure - (answer)Valid data
________ an experimental study prevents bias. - (answer)Blinding
Neither the treatment allocator nor the participant knows in which group the participant is contributing.
(Who is getting the real drug?) - (answer)Double blind study
The participants are not told if they are in the treatment group or control group - (answer)Blind study
Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation, range.... -
(answer)Descriptive analytics
Uses data from t he past to predict the future - (answer)Predictive
Uses experimental design and optimization to predict a future - (answer)Prescriptive
If we move to six appointments an hour we can increase revenue 2%. Which form of analytics is this? -
(answer)Prescriptive - We are taking a specific course of action
Based on the last four quarters, we can predict $4,1 million in sales next quarter. Which form of
analytics is this? - (answer)Predictive: We aren't taking any action
