Mueller and Oppenheimer (2014) conducted a study examining whether taking notes by hand could lead to deeper processing of material than taking notes with a laptop. They flipped a coin to assign one half of the students participating in their study to watch a video lecture while taking notes with paper and pencil, and the other half of the students to watch the same video lecture while taking notes with a laptop. Thirty minutes after the lecture, all students look the same test on the material covered in the lecture, and a research assistant with no knowledge of the two groups graded the tests. The results showed that students who took notes by hand scored higher on conceptual questions (e.g., compare-and-contrast questions) than students who took notes with a laptop. Identify the true and false statements about Mueller and Oppenheimer's (2014) study. True Statement(s) The study involved random sampling. Press Space to open The design of the study involved a comparison group. Press Space to open The researchers were trying to test a causal claim. Press Space to open The study did not include any control variables. Press Space to open False Statement(s)