Table 2.

Marginal posterior densities from the Bayesian analysis.

	Mean	HDIa
MODEL PARAMETERS
Means
μ11	0.226	[−0.054, 0.502]
μ21	−0.513	[−0.863, −0.156]
μ12	−0.034	[−0.391, 0.324]
μ22	0.321	[−0.062, 0.702]
(Co)variances
${\mathrm{\sigma }}_{111}^2$	0.635	[0.353, 0.974]
${\mathrm{\sigma }}_{121}^2$	−0.265	[−0.589, 0.031]
${\mathrm{\sigma }}_{221}^2$	1.026	[0.571, 1.576]
${\mathrm{\sigma }}_{112}^2$	1.056	[0.582, 1.617]
${\mathrm{\sigma }}_{122}^2$	0.460	[0.054, 0.930]
${\mathrm{\sigma }}_{222}^2$	1.204	[0.666, 1.846]
DERIVED QUANTITIES
Effects
μ11 − μ21 (addition vs. subtraction adults)	0.739	[0.221, 1.254]
μ12 − μ22 (addition vs. subtraction children)	−0.354	[−0.758, 0.048]
(μ11 − μ21) − (μ12 − μ22)	1.093	[0.450, 1.756]

^aThe highest density interval is a credible region, including the most likely values.