3. The DNP student also believes that sleep disturbance (calculated by reported number of hours slept/night for 1 week - continuous level data) may be impacted based on depression levels which she ranked ordered into 3 groups (0=low, 1=moderate, 2=high). a. Identify the independent and dependent variables and level of measurement. (0.125 points each) IV = Level of measurement: DV = Level of measurement