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