
LC1-RMA24SS
Authored by Daria Yudaeva
Business
University
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7 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the answers are correct? A nominal scale …
…has an absolute zero point
…possesses all properties of an ordinal scale
…can have numerical values
…serves as a label to classify/categorize objects
None of these
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
In causal inference tasks, …
…the main concern is to generate predictions of future outcomes
…the main concern is to maximize the explained variance
…observational research is the ‘gold standard’
…randomization minimizes unsystematic variation
None of these
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or false? Reliability refers to the consistency of a measurement.
True
False
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Conditions for causality are …
… a cause and an effect should vary together in the way predicted by the hypothesis under consideration
… random assignment of test units
… the causing event must occur before the effect
… absence of other possible causal factors
None of these
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
In predictive modeling tasks …
… once major concern are unobserved confounders
… one major concern is overfitting
… we primarily care about the predictive ability of the model
… we primarily care about causal effects
None of these
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or false? For ordinal scales, the magnitude of difference between scale points is known
True
False
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
For which scale types is it meaningful to compute the mean?
Ratio
Nominal
Interval
Ordinal
None
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