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

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

Samples and subgroups (n)	Observed scores		Adjusted scores		Bias
Samples and subgroups (n)	Mean	SE	Mean	SE	Bias
Behavior sample
Parent education^a
Secondary or less (148)	5.10	.17	5.10	.17	.00
Tertiary (86)	5.21	.22	5.63	.23	−.42
Ordinary sample
Child age groups^b
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

SE Standard error.
^aDifferences in observed mean scores (χ² (1) = 0.2, p = 0.696), and adjusted mean scores (χ² (1) = 3.5, p = 0.062)
^bDifferences in observed mean scores (χ² (2) = 48.7, p < .001), and adjusted mean scores (χ² (2) = 61.8, p < .001)

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