What Post-KR/KP Interval can negatively affect motor skill learning?

The interval between the end of a movement and the delivery of knowledge of results (KR) or knowledge of performance (KP) plays a significant role in skill acquisition. A zero-second interval indicates that there is no time delay between the action and feedback. In this context, immediate feedback following a movement can disrupt the learning process. When learners do not have an opportunity to reflect on their performance before receiving feedback, they may not engage in the necessary cognitive processing to internalize the information provided. This lack of processing can hinder the development of the motor skills being practiced.

In contrast, other intervals, such as one second, two seconds, or five seconds, generally allow for some cognitive processing time, enabling learners to evaluate their performance before receiving feedback. This can contribute to better understanding and retention of the information provided, ultimately facilitating more effective skill learning. Therefore, a zero-second interval stands out as particularly detrimental to motor skill acquisition due to the immediate delivery of feedback, which can overwhelm or confuse the learner rather than enhance their learning experience.