Graff means that most girls in the space school have not passed the grueling tests because over evolution girls have created a reputation that makes them more feminine and weaker than boys. For example, on page 24 Graff says, "A few girls. They don't often pass the tests to get in."
In "Ender's Game," Graff believed that evolution worked against girls because they were typically more nurturing and compassionate, traits that could hinder their ability to be aggressive and competitive in the military training program. Graff thought that girls were less likely to succeed in the harsh and cutthroat environment of Battle School because they were less inclined towards violence and dominance.
ender
Mr. Graff is a manipulative and authoritative figure in "Ender's Game," acting as the head of the Battle School program. He is strategic and calculating in his approach to training Ender, pushing him to his limits in order to prepare him for the imminent alien threat. Despite his tough exterior, Graff shows a complex mix of care and ruthlessness in his interactions with Ender.
Jo Graff's birth name is Josephine Graff.
No
Laurence Graff was born in 1938.
Agnieszka Graff was born in 1970.
Finn Graff was born in 1938.
Kasimir Graff was born in 1878.
Gary Graff was born in 1960.
Graff's Market was created in 1892.
Keir Graff was born in 1969.
Richard Graff was born in 1937.