A theory of practice in high-proficiency skills such as speech production is proposed, involving activation of a hierarchy of nodes in serial order within an output system of behavior. Increased flexibility with practice, response mechanism transfer in skills, motor equivalence, automaticity, and speed-accuracy trade-off are discussed. (Author/CM)

The need for an empirically defensible means of sequencing instruction appears to have been the primary motivator for research into learning hierarchies. Four methods for generating candidates for learning hierarchies were reviewed: introspection, formal analysis, observation, and statistical "fishing." Experimental transfer of training…

The literature on learning research pertaining to the internal processing operations of the learner was reviewed. The current thinking of learning theorists regarding the nature and importance of these processes in learning and retention is described, and their significance for instructional technology is examined. Verbalization, imagery, and…