Final answer:
Children consistently disappointed by caregivers are likely to demonstrate lower levels of patience, influenced by attachment styles such as avoidant and resistant, which correlate with insensitive or inconsistent caregiving.
Step-by-step explanation:
Based on the updated marshmallow study, children who are disappointed regularly by important caregivers would likely demonstrate lower levels of patience. This inference is supported by various research findings on attachment and the development of self-regulation in children.
For example, children with avoidant attachment, resulting from insensitive caregiving, may be less responsive to delayed gratification, as they have learned that their needs are often unmet. Additionally, children with resistant attachment could exhibit less patience due to the inconsistent response from their caregivers, leading to distrust in the reliability of delayed rewards.