The TOH, mentioned earlier as a cognitive procedural learning task, is also commonly used as a measure of EF, demonstrating age-related performance. For example, Ahonniska and colleagues (2000) reported that older children (11–12 years) outperformed younger children (7–8 years) in the TOH task. It is possible that the development of various aspects of EFs within these years account for the increase in the learning potential of the older children, enhancing the likelihood that performance on cognitive procedural learning is mediated by EF abilities.