WGU C207 Data Driven Decision Making COMPREHENSIVE
QUESTIONS WITH VERIFIED ANSWERS 2024 NEWEST
UPDATE
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
The participants are not told if they are in the treatment group or control group -
(correct answer) Blind study
QUESTIONS WITH VERIFIED ANSWERS 2024 NEWEST
UPDATE
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
The participants are not told if they are in the treatment group or control group -
(correct answer) Blind study
