WGU C207 Data Driven Decision Making
Exam UPDATED ACTUAL 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
Exam UPDATED ACTUAL 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
