Weinstein, McDermott, and Roediger (2010) conducted an experiment to evaluate the effectiveness of different study strategies. One part of the study asked students to prepare for a test by reading a passage. In one condition, students generated and answered questions after reading the passage. In a second condition, students simply read the passage a second time. All students were then given a test on the passage material and the researchers recorded the number of correct answers. a. Identify the independent variable for this study. ( or ) b. Identify the dependent variable for this study. ( or ) c. Is the dependent variable categorical or continuous? ( or ) d. What scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable? ( or )