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Table 1 Sample Description, Including N, Participants’ Age, Parents’ Schooling, Familial Household Income, Gender, Number of Siblings, Duration of Schooling, Time at the Present School, and Attendance During the School Year

From: Is it possible to promote executive functions in preschoolers? A case study in Brazil

  Sample description
  N (%) Age in years (SD)   
CG 37 (52.9) 5.5 (.21)   
EG 33 (47.1) 5.6 (.21)   
Total 70 5.5 (.21)   
  Mother schooling (frequency)
  Elementary high school college x2 p
CG 14 15 2 4.100 .129
EG 3 13 2
  Father schooling (frequency)
  Elementary high school college x2 p
CG 19 10 1 .214 .899
EG 10 6 1
  Household income (frequency) *
  Up to 1 salary 1 to 3 salaries More than 3 salaries x2 p
CG 8 20 4 2.427 .297
EG 4 10 6
  Gender (frequency)
   Female Male   x2 p
CG   19 18   1.075 .300
EG   21 12  
  Number of siblings
  M SD    t p
CG 1 1.3    .900 .372
EG 1.4 1.6   
  Duration of schooling in months
  M SD    t p
CG 25.6 16.3    .302 .764
EG 26.5 12.9   
  Time at the present school in months **
  M SD    t p
CG 12.2 10.5    .373 .711
EG 13.2 10.8   
  Attendance in school year (%)
  M SD    t p
CG 89.5 6.8    −2.028 .048
EG 85.1 10.7   
  1. *Considering the exchange rate in U.S. dollars: U$ 2.70 = R$ 1.00 (Brazilian Real)
  2. 1 salary = $268.15 - it is the minimum value allowed, in Brazil, to be paid to a worker
  3. **refers to the number of months the child is in the current school
  4. CG – Control Group / EG – Experimental Group