@article{
  author = {Rezaei, Akbar, Khodakhah, Shabnam},
  title = {The statistical population was 1892 people (118 gifted and 1774 normal) Using Cochran’s adjusted formula the sample size was 51 gifted and 268 normal people},
  journal = {Journal of Instruction and Evaluation},
  year = {2009},
  volume = {2},
  number = {5},
  pages = {117-134},
  doi = {}
}