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Table 4 Scholastic achievement variables among male and female adolescents (F – frequency, % - percentage) and Kruskal Wallis ANOVA between sexes (H – H value; p – level of significance)

From: Substance abuse prevalence and its relation to scholastic achievement and sport factors: an analysis among adolescents of the Herzegovina–Neretva Canton in Bosnia and Herzegovina

  BOYS GIRLS Kruskal Wallis
F % F % H p
Scholastic achievement       
excellent (5) 86 19.77 56 9.38   
very good (4) 20 4.60 10 1.68   
good - average (3) 174 40.00 145 24.29   
sufficient – bellow average (2) 119 27.36 248 41.54   
insufficient (1) 36 8.28 135 22.61   
Missing 0 0.00 3 0.50 89.40 0.001
School absence…       
almost never (4) 108 24.83 210 35.18   
rarely (3) 163 37.47 233 39.03   
from time to time (2) 125 28.74 133 22.28   
often (1) 37 8.51 18 3.02   
Missing 2 0.46 3 0.50 22.91 0.001
Unexcused school absence…       
< 5 (5) 213 48.97 462 77.39   
5-10 (4) 111 25.52 89 14.91   
11-15 (3) 59 13.56 17 2.85   
16-20 (2) 42 9.66 7 1.17   
20 ≥ (1) 8 1.84 10 1.68   
Missing 2 0.46 12 2.01 108.84 0.001
Behavior grade…       
exemplary (3) 255 58.62 505 84.59   
fair (2) 112 25.75 76 12.73   
poor (1) 67 15.40 13 2.18   
Missing 1 0.23 3 0.50 97.65 0.001
  1. LEGEND: number in parentheses presents ordinal value for each variable.