WGU C207 Data Driven Decision Making -
Data Driven Express Cohort
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
Data Driven Express Cohort
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
