Figure 3: Top panel. Pearson product moment correlational analyses between PQ1 and time writing (min) over all 30 AD patients summated over all 10 days of testing, Pearson r = 0.938 (df = 12), p < 0.000001. Bottom panel. Pearson product moment correlational analyses between time writing (min) and dΔ over all 30 AD patients summated over all 10 days of testing, Pearson r = 0.829 (df = 12), p < 0.0000001, two-tailed tests.