512 Wisconsin* Academy of Sciences, Arts, and Letters. 
Auditory Memory Span bij Grades 
4. The actual memory span by ages is as follows: 
4 at the age of five years. 
5.6 at the age of six years. 
5.7 at the age of seven years. 
6.1 at the age of eight years. 
6.6 at the age of nine years. 
6.4 at the age of ten years. 
7.2 at the age of eleven years. 
7.4 at the age of twelve years. 
7.6 at the age of thirteen years. 
6.9 at the age of fourteen years. 
8.0 at the age of fifteen years. 
