Which concept best describes a mechanism that can sustain motivation within Ayres' theory?

• A. External rewards
• B. Inner drive
• C. Just-right challenge
• D. Punishment

Answer: (C)

The mechanism that sustains motivation in Ayres' theory is presenting a task at just-right challenge—neither too easy nor too hard for the child’s current abilities. When the activity sits at that optimal level, the child experiences enough novelty and success to stay engaged, curious, and willing to persist, while the sensory input and motor demands are aligned with their processing capacity to avoid overload or boredom. This intrinsic engagement is a core part of Ayres’ approach, fostering consistent participation and adaptive responses during therapy or everyday activities. External rewards or punishment rely on external control and do not tap into the child’s sensory-motor readiness in the same way, and inner drive is a broader concept, whereas just-right challenge specifically captures the mechanism of maintaining optimal arousal and engagement through carefully calibrated task demands. If the task feels too easy, increase the challenge slightly; if it feels too hard, reduce the demands or provide supports, maintaining that balance to keep motivation flow.