Final answer:
The correct technique for palpating uterine contractions involves gently pressing down on the abdomen over the fundus with one hand to monitor the progression of labor.
Step-by-step explanation:
The correct technique for a staff member to use when palpating uterine contractions is observed if the individual places one hand on the abdomen over the fundus and, with the fingertips, gently presses down. This method allows the caregiver to assess the strength, duration, and frequency of the uterine contractions during labor. It is essential for monitoring the progress of labor and ensuring the well-being of both the mother and the baby.