Part-Whole Training Effect

The part-whole training effect refers to the empirical finding, drawn from research on training complex skills, that whether practicing a skill's individual components separately, called part training, or practicing the entire skill together as one unit, called whole training, produces better learning depends heavily on the specific nature of the task rather than one method being universally superior. The psychologists James Naylor and George Briggs developed an influential framework in the early 1960s proposing that the relative effectiveness of part versus whole training depends jointly on how complex a task is and on how tightly organized, or interdependent, its component parts are: a highly complex task whose components can be performed in relative isolation from one another tends to be learned more efficiently through part training, since each component can be mastered individually before being combined, whereas a task whose components are simple individually but tightly interdependent tends to be learned more efficiently through whole training, since practicing any one part in isolation fails to capture the coordination between parts that the complete skill actually requires. This task complexity and organization framework remains the standard account cited in motor-skill-acquisition and applied training research for reconciling what would otherwise appear to be a large number of contradictory findings across individual studies that had each compared part and whole practice methods on a different, specific task.