Distribution of Practice
u The classic experiment: Dore and Hilgard
(1937).
l Subjects' task was pursuit rotor.
l initially all groups were given 3 one minute trials
with 1 minute rests for each block.
l after 3 blocks
u group 1: 11 minute rests
u group 2: 3 minute rests
u group 3: only 1 minute rests.
l The longer the rest the greater the performance.
l Suggests that distributed (rested) practice is
superior to massed practice.