The variety of movement and context characteristics a person experience while practicing a skill.
The memory and performance disruption (i.e interference) that results from performing multiple skills or variations of a skill with a context of practice.
Contextual Interference effect
The learning benefit resulting from performing multiple skills in a high contextual interference practice schedule (e.g. random practice) rather than performing the skill in low contextual interference schedule (eg blocked practice).
Specificity of Practice Hypothesis
The view that motor skill learning by practice condition characteristics, especially the sensory/perceptual information available, performance context characteristics, and cognitive processes involved.