Table 1.

Observed and factor mean comparison in the illustrative example

	Mean difference	Model	Estimate [$95\%$ C.I.]
	Observed		-0.02 [-0.01, 0.06]
Dichotomous	Factor	Scalar	0.26 [-0.54, 1.12]
		Partial strict	0.33 [0.04, 0.76]
	Observed		-0.07 [-0.04, 0.19]
Ordered-polytomous	Factor	Scalar	0.15 [0.02, 0.3]
		Partial strict	0.14 [0.02, 0.3]

Note. Bolded figures are the statistically significant estimated mean difference