To interpret the Human Development Index (HDI) of North America, Central America, and the Caribbean accurately, the factor that must be considered is:
• Canada and the U.S. have significantly higher scores than the rest of the countries.
This is important because the high HDI scores of Canada and the United States can disproportionately influence the overall HDI average for the region, potentially masking the lower HDI scores of many countries in Central America and the Caribbean.