Final answer:
Talking on a cell phone while driving is true to reduce a driver's field of view, leading to diminished situational awareness and increased risk of accidents.
Step-by-step explanation:
The statement that drivers reduce their field of view by as much as 50% when talking on a cell phone is true. Engaging in cellphone conversations while driving can significantly impair one's visual field, which is crucial for maintaining situational awareness and responding appropriately to road conditions and traffic signals. This reduction in the field of view is associated with what is called "inattentional blindness," where a driver may be looking at something but not actually seeing it because their attention is divided. Multitasking while driving, such as talking on a phone, can lead to such perceptual deficits, increasing the risk of traffic incidents.