C207 OA 2026 QUESTIONS AND ANSWERS | A+ GRADED | WITH EXPERT SOLUTIONS
Descriptive statistics are used to ____ - (ANSWER)Inform / Explanatory
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
, C207 OA 2026 QUESTIONS AND ANSWERS | A+ GRADED | WITH EXPERT SOLUTIONS
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
Questions favor an outcome or the interviewer asks questions that favor an outcome -
(ANSWER)Information Bias
Bias introduced because respondents believe it will be beneficial if selected - (ANSWER)Conscious Bias
Measures the difference between the third and first quartile - (ANSWER)IQR: Interquartile Range
Formula to calculate the IQR - (ANSWER)IQR = Q3 - Q1
Formula to calculate outliers BELOW the IQR - (ANSWER)Q1 - 1.5 * IQR
Formula to calculate outliers ABOVE the IQR - (ANSWER)Q3 + 1.5 * IQR
Descriptive statistics are used to ____ - (ANSWER)Inform / Explanatory
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
, C207 OA 2026 QUESTIONS AND ANSWERS | A+ GRADED | WITH EXPERT SOLUTIONS
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
Questions favor an outcome or the interviewer asks questions that favor an outcome -
(ANSWER)Information Bias
Bias introduced because respondents believe it will be beneficial if selected - (ANSWER)Conscious Bias
Measures the difference between the third and first quartile - (ANSWER)IQR: Interquartile Range
Formula to calculate the IQR - (ANSWER)IQR = Q3 - Q1
Formula to calculate outliers BELOW the IQR - (ANSWER)Q1 - 1.5 * IQR
Formula to calculate outliers ABOVE the IQR - (ANSWER)Q3 + 1.5 * IQR
