Problem: In the following examples, determine if the hypothesis is directional or nondirectional and simple or complex. A formal nursing recognition program will improve acute care nurses' perceptions of their work environment. The use of aspirin will affect the incidence of maternal bleeding, gestational hypertension, and preeclampsia in women of advanced maternal age. Ginger will be more effective in treating chemotherapy-induced nausea than peppermint and lavender oil in patients undergoing bone marrow transplant. Need Assignment Help?