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Table 6 Comparison of observed and equated mean Parental Stress scores in parent education groups for the behavior sample and child age groups for the ordinary sample

From: The Parental Stress Scale revisited: Rasch-based construct validity for Danish parents of children 2–18 years old with and without behavioral problems

Samples and subgroups (n) Observed scores Adjusted scores Bias
Mean SE Mean SE
Behavior sample
Parent educationa
  Secondary or less (148) 5.10 .17 5.10 .17 .00
  Tertiary (86) 5.21 .22 5.63 .23 −.42
Ordinary sample
Child age groupsb
  2–5 years (174) 4.75 .15 4.75 .15 .00
  6–10 years (201) 4.18 .13 4.10 .13 .09
  11–18 years (196) 3.35 .14 3.14 .14 .22
  1. SE Standard error.
  2. aDifferences in observed mean scores (χ2 (1) = 0.2, p = 0.696), and adjusted mean scores (χ2 (1) = 3.5, p = 0.062)
  3. bDifferences in observed mean scores (χ2 (2) = 48.7, p < .001), and adjusted mean scores (χ2 (2) = 61.8, p < .001)