Other factors that may generally influence the outcome of securely attached children can be income. "One study. for example, assessed children who were chronically undernurished; only 7% of these were "securely attached"' (Valenzuela,1990,1997). Income could be an underlying variable, generally with low income, there is a lower probability for success. Without a sufficient amount of income, it will be harder to pay for a college education; without a college education, there is less of a probability for success. Thus proving the direct correlation between success and income, rather than income and secure attachment.
The standard of living of a child can greatly influence how they grow up. Under the right conditions, the children would aspire to live the life they lived as kids or challenge themselves to do better as they grow older. However how the child grows up can differ. If the child is independent, it will be most likely have a higher probability for success but if the child is dependent, they're probability for success is going to be much lower, even with a sufficient amount of income.
