Final answer:
The statement that Chagnon experienced culture shock at the beginning of his fieldwork among the Yanomamo is true. Culture shock is described as initial disorientation and stress when encountered by people adjusting to a new culture.
Step-by-step explanation:
At the beginning of Chagnon's fieldwork among the Yanomamo, he experienced culture shock. The statement is True. Culture shock is a common experience for researchers like Chagnon and other individuals when they encounter cultures vastly different from their own, as anthropologists like Ken Barger and Kalervo Oberg have documented in their fieldwork and studies. It involves feelings of disorientation and stress as one adjusts to the new cultural norms, language, and daily routines, among other differences. Over time, individuals can adapt and become more comfortable in the new cultural setting, but the initial shock can be significant, as Chagnon would have experienced during his early days with the Yanomamo.