Encryption Claims in Transition to Higher Education Exam and Proposing a Method to Determine Whether the Candidates Used the Encryption

Dogan M. K.

EGITIM VE BILIM-EDUCATION AND SCIENCE, cilt.37, sa.166, ss.206-218, 2012 (SSCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 166
  • Basım Tarihi: 2012
  • Dergi Adı: EGITIM VE BILIM-EDUCATION AND SCIENCE
  • Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.206-218
  • Anahtar Kelimeler: Student selection and placement system, transition to higher education exam, encryption
  • Ankara Üniversitesi Adresli: Evet

Özet

It is claimed that the questions were encrypted in the transition to higher education exam of year 2011, and thus the correct answers can be found by using the choices given under each question. The aim of this study is to test this claim statistically. The circular mode encryption method is applicable to 31 questions in math section and its expected success rate is %58.7 (18.2 correct answers). It is determined that the exam was encrypted with a probability of error less than one millionth. It can be concluded that no method can reach such high success rate without any encryption. Also, it is not possible that encryption arises as a result of shifting the choices of questions inadvertently when forming the new choices. The study also proposes a method to determine whether the encryption is used by candidates or not, and if used, the method states the candidates have used it.