WGU C207 Data Driven Decision Making
2022
Frame the Problem, Solving the Problem and Communicating Results are part of which
decision making model? - Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - Framing the
problem
In which stage of the Davenport-Kim model is data collection? - Solving the problem
What is a key reason we study statistics? - To make informed decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
Communicating the results
When does research fail to produce reliable results? - Poor research validity
What are the two major issues surrounding research standards? - Best practices and
ethics
In order to be a statistically valid sample, the sample must be: - The appropriate size
and random
Not selecting a random sample is what type of bias? - Measurement
Not selecting a right sized sample is what type of bias? - Measurement
Research best practices eliminate... - Bias
Outliers create this type of error - Out-of Range
Unpredictable error - Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - Omission Error -
Distorted results
This error repeats itself - Systematic Error - Skewed results
Observation points that are distant from other observations. - Outliers Note: Can be
included or excluded in analysis (causes skewness)
, Types of Bias: Bias that occurs from not selecting a random sample - Measurement
bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if
selected. - Conscious bias (key word: benefit)
Consistent and repeatable data - Reliable
Resulting from accurate measurements - Valid data
If a responder lies on their survey, this creates what type of bias? - Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the
very bottom of the column - Omission or Out-of-Range
An error that will fix itself over time - Random
An error that will not fix itself. You must do something - Systematic
Cleaning and organizing data - Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or
communication style - Qualitative
A study used when you a conditions can't be controlled - Observational study
Observes people going forward in time from the time of their entry into the study. -
Cohort Study
What are the three elements of an experimental study? - Unit, Treatment, Response
Accurately measures what it is intended to measure - Valid data
________ an experimental study prevents bias. - Blinding
Neither the treatment allocator nor the participant knows in which group the participant
is contributing. (Who is getting the real drug?) - Double blind study
The participants are not told if they are in the treatment group or control group - Blind
study
Describes characteristics of a dataset. Mean, median, mode, variation, standard
deviation, range.... - Descriptive analytics
Uses data from t he past to predict the future - Predictive
2022
Frame the Problem, Solving the Problem and Communicating Results are part of which
decision making model? - Davenport-Kim three-stage model
In which stage of the Davenport-Kim model is problem recognition? - Framing the
problem
In which stage of the Davenport-Kim model is data collection? - Solving the problem
What is a key reason we study statistics? - To make informed decisions
Visually presenting the data assists in which stage of the Davenport-Kim model? -
Communicating the results
When does research fail to produce reliable results? - Poor research validity
What are the two major issues surrounding research standards? - Best practices and
ethics
In order to be a statistically valid sample, the sample must be: - The appropriate size
and random
Not selecting a random sample is what type of bias? - Measurement
Not selecting a right sized sample is what type of bias? - Measurement
Research best practices eliminate... - Bias
Outliers create this type of error - Out-of Range
Unpredictable error - Random Error - No correlation
Error may occur from missing data. (Example: Space not filled in) - Omission Error -
Distorted results
This error repeats itself - Systematic Error - Skewed results
Observation points that are distant from other observations. - Outliers Note: Can be
included or excluded in analysis (causes skewness)
, Types of Bias: Bias that occurs from not selecting a random sample - Measurement
bias
Types of Bias: Bias introduced because respondents believe it will be beneficial if
selected. - Conscious bias (key word: benefit)
Consistent and repeatable data - Reliable
Resulting from accurate measurements - Valid data
If a responder lies on their survey, this creates what type of bias? - Information
Sorting your spreadsheet can expose these errors by moving them to the very top or the
very bottom of the column - Omission or Out-of-Range
An error that will fix itself over time - Random
An error that will not fix itself. You must do something - Systematic
Cleaning and organizing data - Data Management
Are the following variable quantitative or qualitative? Personality type, social class, or
communication style - Qualitative
A study used when you a conditions can't be controlled - Observational study
Observes people going forward in time from the time of their entry into the study. -
Cohort Study
What are the three elements of an experimental study? - Unit, Treatment, Response
Accurately measures what it is intended to measure - Valid data
________ an experimental study prevents bias. - Blinding
Neither the treatment allocator nor the participant knows in which group the participant
is contributing. (Who is getting the real drug?) - Double blind study
The participants are not told if they are in the treatment group or control group - Blind
study
Describes characteristics of a dataset. Mean, median, mode, variation, standard
deviation, range.... - Descriptive analytics
Uses data from t he past to predict the future - Predictive
