title: Performance of university students on random number generation at different rates to evaluate executive functions.
abstract: OBJECTIVE
  To evaluate the performance of adult young subjects in a Random Number Generation (RNG) task by controlling the response speed (RS).
  
  
  METHODS
  Sixty-nine university students of both sexes took part in the experiment (25.05 +/- 6.71 year-old). Participants were alloted into 3 groups which differed in RS rates to generate numbers: 1, 2 and 4 seconds to generate each number. A digital metronomer was used to control RS. Participants were asked to generate 100 numbers. The responses were measured through Evans's RNG Index.
  
  
  RESULTS
  There were statistically significant differences among the groups [F (3, 68) = 7.120; p <.05]. Differences were localized between 1 and 2 seconds (p = 0.004) and between 1 and 4 seconds (p = 0.006). No differences were observed between 2 and 4 seconds (p = 0.985).
  
  
  CONCLUSIONS
  The present results suggest that the response speed in production of random numbers influences the performance of the Random Numbers Generation task.
authors.affiliation: Departamento de Psicologia, Universidade Federal de Mato Grosso do Sul, Brazil.
authors.forename: Amer C
authors.initials: AC
authors.lastname: Hamdan
authors.forename: Juberty A
authors.initials: JA
authors.lastname: de Souza
authors.forename: Orlando F A
authors.initials: OF
authors.lastname: Bueno
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008570:Memory, Short-Term / Q000502:physiology; D008606:Mental Processes / Q000502:physiology*; D009483:Neuropsychological Tests; D013647:Task Performance and Analysis; D013997:Time Factors