Final answer:
According to the universal ethical standards identified by the Character Counts organization, the core value being referred to is responsibility.
Step-by-step explanation:
The core value of being self-controlled and self-disciplined and being accountable for your choices, according to the universal ethical standards identified by the Character Counts organization, is responsibility.
Responsibility is the virtue that emphasizes taking ownership of one's actions and being accountable for the consequences. For example, if a student completes their homework on time and studies consistently, they are being responsible for their academic success.