Charness (1981)used a Neural Network Model to Measure Recall

Charness (1981) used a neural network model to measure recall.He found which of the following to be true among chess players?

A) Skill level, not age, determines a player's ability.
B) Older players could visualize more moves ahead than younger players.
C) Younger players took almost 50% longer to move.
D) Speeded games cause younger players to make more mistakes.