Final answer:
Anthropological data can be checked by comparing it with historical knowledge or tree-ring counting. Quantitative analysis using census data and social statistics is another method. Anthropologists also follow the scientific method to ensure the validity of their findings.
Step-by-step explanation:
The validity of anthropological data can be routinely checked through various methods. One way is by comparing the data with historical knowledge or tree-ring counting. Another method is through quantitative analysis, where anthropologists utilize census data, medical research data, and social statistics to evaluate the validity of the data. Additionally, anthropologists follow the scientific method, forming testable hypotheses, gathering data, and conducting statistical analyses to ensure the validity of their findings.