University students are increasingly taking class notes on a laptop rather than writing their notes by hand. Students argue that laptops are more efficient, but professors typically disagree. Which method is better for developing conceptual understanding? In an experiment, 109 university students all watched the same lecture. Half were randomly assigned to take notes on a laptop while the remaining students took notes by hand. Before taking a test to measure conceptual understanding of the lecture, researchers assigned half of each group to review their notes while the other half wasn’t given an opportunity to review. List the explanatory variables and the number of possible values for each variable. If the researchers used every possible combination to form the treatments, how many treatments were included in the experiment? 2. List two of the treatments. 3. Were the subjects (the students) “blind” to what treatment they received? 4.What is the response variable?
University students are increasingly taking class notes on a laptop rather than writing their notes by hand. Students argue that laptops are more efficient, but professors typically disagree. Which method is better for developing conceptual understanding? In an experiment, 109 university students all watched the same lecture. Half were randomly assigned to take notes on a laptop while the remaining students took notes by hand. Before taking a test to measure conceptual understanding of the lecture, researchers assigned half of each group to review their notes while the other half wasn’t given an opportunity to review.
- List the explanatory variables and the number of possible values for each variable.
- If the researchers used every possible combination to form the treatments, how many treatments were included in the experiment?
2. List two of the treatments.
3. Were the subjects (the students) “blind” to what treatment they received?
4.What is the response variable?
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