ANOVAs measure within and between group variance. Explain what between group variance means for the following senario: IV is the time since release from hospital (1 week versus 1 month versus 1 year) and DV is patient weight. 1 Week 1 Month 1 Year Pt. 1 152 160 155 Pt. 2 170 171 171 Pt. 3 122 119 115 Pt. 4 225 235 245 Group of answer choices Between groups variance measures the difference within each time period. As in, patient 1's weight at week 1 (152) differs from patient 2's weight at week 1 (170), which differs from patient 3's weight at week 1 (122). Although all were measured at the same point in time, each patient's weight within the week 1 measurement is different, it varies. Between group measures the difference between groups (e.g., 1 week, 1 month, and 1 year). This is basically that each patient varied in how much weight change he or she experienced over the course of these three time periods. Patient 1 gained 3 pounds total by the end of the year. Patient 2 gained 1 pound, patient 3 lost 7 pounds and patient 4 gained 20 pounds. In short, the amount of