COMM 2000Q Exam 2 UPDATED
QUESTIONS AND CORRECT ANSWERS
Measurement & its role - CORRECT ANSWER - process that includes everything the
researcher does to arrive at the numerical estimates
- Including: instrument used, how it was used, skill of who used it, and characteristics being measured
- role: assigns numbers to data to represent characteristics, linking abstract concepts to observable
data and allowing researchers to describe and evaluate variables.
Levels of measurements - CORRECT ANSWER Nominal, Ordinal, Interval, Ratio
Nominal - CORRECT ANSWER cant measure differences or distance between categories
Limited statistical data
Ordinal - CORRECT ANSWER Isn't very accurate
Limited to rank-based comparison
Cant perform math calculations
Distance in unknown
Interval - CORRECT ANSWER has no true zero point
Cant make ratio comparisons
Ratio - CORRECT ANSWER some variable cant logically have a true 0 point
Not all concepts can be measured at this level
Considerations - CORRECT ANSWER Level at which you decide to measure your variable
Normally best to measure at most percise level
Ratio > Nominal
Difference between Categorical and Continuous - CORRECT ANSWER Categorical:
characteristics/ labels (qualitative) no meaningful math
QUESTIONS AND CORRECT ANSWERS
Measurement & its role - CORRECT ANSWER - process that includes everything the
researcher does to arrive at the numerical estimates
- Including: instrument used, how it was used, skill of who used it, and characteristics being measured
- role: assigns numbers to data to represent characteristics, linking abstract concepts to observable
data and allowing researchers to describe and evaluate variables.
Levels of measurements - CORRECT ANSWER Nominal, Ordinal, Interval, Ratio
Nominal - CORRECT ANSWER cant measure differences or distance between categories
Limited statistical data
Ordinal - CORRECT ANSWER Isn't very accurate
Limited to rank-based comparison
Cant perform math calculations
Distance in unknown
Interval - CORRECT ANSWER has no true zero point
Cant make ratio comparisons
Ratio - CORRECT ANSWER some variable cant logically have a true 0 point
Not all concepts can be measured at this level
Considerations - CORRECT ANSWER Level at which you decide to measure your variable
Normally best to measure at most percise level
Ratio > Nominal
Difference between Categorical and Continuous - CORRECT ANSWER Categorical:
characteristics/ labels (qualitative) no meaningful math
