WGU C207 OA DATA DRIVEN DECISION
MAKING OBJECTIVE ASSESSMENT ACTUAL
TEST PAPER QUESTIONS AND SOLUTIONS
●● Inferential statistics are used to ____
Answer: Predict / Trend
●● Name the 4 levels of measurement (NOIR)
Answer: Nominal, Ordinal, Interval, Ratio
●● Identify, Group, or Categorize
Answer: Nominal
●● Orders data with equal distance apart (numerical, no true zero)
Answer: Interval
●● Place qualitative objects in some kind of order
Answer: Ordinal
●● Continuous data with a unique/true zero point
Answer: Ratio
,●● This error repeats itself
Answer: Systematic Error - Skewed results
●● Unpredictable error
Answer: Random Error - No correlation
●● Error that may occur from missing data (Example: space not filled
in)
Answer: Omission Error - Distorted results
●● Outliers create this type of error
Answer: Out-of-Range Error
●● What is the process of quality control?
Answer: Reduce / Minimize errors
●● The procedure the researcher applies to each subject
Answer: Treatments
●● Used when impractical or impossible to control the conditions of the
study
Answer: Observational Study
, ●● Participants are not told if they are in the treatment group or control
group
Answer: Blind Study
●● All variable measurements and manipulations are under the
researcher's control
Answer: Experimental Study
●● Neither the treatment allocator nor the participants know who is in
the treatment or control group
Answer: Double Blind Study
●● Bias that occurs from not selecting a random sample
Answer: Measurement Bias
●● The average outcome (payoff) when the future includes scenarios
that may or may not happen
Answer: Expected Monetary Value (EMV) Analysis
●● Observation points that are distant from other observations
Answer: Outliers
MAKING OBJECTIVE ASSESSMENT ACTUAL
TEST PAPER QUESTIONS AND SOLUTIONS
●● Inferential statistics are used to ____
Answer: Predict / Trend
●● Name the 4 levels of measurement (NOIR)
Answer: Nominal, Ordinal, Interval, Ratio
●● Identify, Group, or Categorize
Answer: Nominal
●● Orders data with equal distance apart (numerical, no true zero)
Answer: Interval
●● Place qualitative objects in some kind of order
Answer: Ordinal
●● Continuous data with a unique/true zero point
Answer: Ratio
,●● This error repeats itself
Answer: Systematic Error - Skewed results
●● Unpredictable error
Answer: Random Error - No correlation
●● Error that may occur from missing data (Example: space not filled
in)
Answer: Omission Error - Distorted results
●● Outliers create this type of error
Answer: Out-of-Range Error
●● What is the process of quality control?
Answer: Reduce / Minimize errors
●● The procedure the researcher applies to each subject
Answer: Treatments
●● Used when impractical or impossible to control the conditions of the
study
Answer: Observational Study
, ●● Participants are not told if they are in the treatment group or control
group
Answer: Blind Study
●● All variable measurements and manipulations are under the
researcher's control
Answer: Experimental Study
●● Neither the treatment allocator nor the participants know who is in
the treatment or control group
Answer: Double Blind Study
●● Bias that occurs from not selecting a random sample
Answer: Measurement Bias
●● The average outcome (payoff) when the future includes scenarios
that may or may not happen
Answer: Expected Monetary Value (EMV) Analysis
●● Observation points that are distant from other observations
Answer: Outliers
