Final answer:
Dexter's belief aligns with Theory X of Herzberg's motivation theory, which assumes workers require external rewards to remain productive, a contrast to Theory Y where workers are intrinsically motivated.
Step-by-step explanation:
Dexter's approach to motivation, where he believes workers need a "carrot" or external reward to ensure quality and productivity, aligns with Theory X according to Herzberg's theory of motivation. This theory presumes that people dislike work and will avoid it if possible, requiring managers to enforce a system of rewards and punishments to achieve organizational goals. Theory X is typically contrasted with Theory Y, where it's believed that people find work to be a natural part of life and are more satisfied when given responsibility, thus being intrinsically motivated and engaging more productively when they have autonomy and input into their work goals.