Skip to main content
. 2020 Jun 9;11:1268. doi: 10.3389/fpsyg.2020.01268

TABLE 2.

School absence during one semester (84 school days) and demographic characteristics.

Days of absence Hours of absence


Mean (SD) p-Value Effect size Mean (SD) p-Value Effect size
Gender <0.001 d = 0.20 <0.001 d = 0.11
 Boys 3.52 (4.76) 4.63 (8.65)
 Girls 4.54 (5.28) 5.66 (9.63)
Age <0.001 η2 = 0.03 <0.001 η2 = 0.03
 16 (n = 2984) 3.40 (4.55) 4.00 (7.85)
 17 (n = 2991) 3.82 (4.69) 4.46 (8.22)
 18–19 (n = 2238) 5.22 (5.92) 7.89 (11.50)
School program 0.005 d = 0.07 0.864 d = 0.006
 General studies 3.86 (4.50) 4.98 (8.81)
 Vocational studies 4.19 (5.46) 5.03 (9.25)

SD, standard deviation; d, Cohen’s d; η2: eta-squared. Effect size for t-test: Cohen’s d, for ANOVA: eta-squared.