It's from the 1970's, children's book which was the autobiographical story of a young girl call Jane (or Janey).
It starts with her taking the 11+ and failing because she forgot to turn the page over and missed the last question. There was also a chapter about the games she and her friends played such as kick the can and knock down ginger. I think they also played on bomb sites.
The cover was mainly white and I think it was published by Penguin (there was definitely a bird logo in the bottom left hand corner).
It's been driving me mad for years! Any ideas please?