Problem
Ackerman and Goldsmith (2011) compared learning performance for students who studied material printed on paper versus students who studied the same material presented on a computer screen. All students were then given a test on the material and the researchers recorded the number of correct answers.
i. Identify the dependent variable for this study.
ii. Is the dependent variable discrete or continuous?
iii. What scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable?