Final answer:
Ted's belief that his graduation depends on his own motivation and determination is known as having an internal locus of control.
Step-by-step explanation:
Ted believes that when he graduates depends primarily on his motivation and determination. This thought process is called internal locus of control, which refers to the belief that personal efforts directly influence the outcomes of one's life. Ted's belief fits the definition of internal locus of control as proposed by psychologist Julian Rotter.
This is distinct from external locus of control, where a person believes that outcomes are largely due to external factors such as luck or other people. Self-efficacy, on the other hand, is a related concept where an individual believes in their own ability to succeed in specific situations.