Measurable goals allow you to judge your progress towards achieving them as well as to know for certain when you have done so. In psychological terms, measurable goals are more motivational than abstract goals
Answer:
Formal operations
Explanation:
During formal operational stage adolescents<em> gain the ability of abstract thinking and its application, they can manipulate ideas in their heads without any dependance, they also begin to think creatively and can do mathematical calculations.</em>
I hope you find this information useful and interesting! Good luck!