Table 2.

Main Linear Mixed-Effects Model Predicting Change in Rating: Fixed Effects

Fixed effect	b	SE	t test	p
First rating	0.98	0.01	t(665.48) = 179.25	< .001
ΔRating	0.12	0.01	t(565.93) = 8.53	< .001
ΔRating × Children	0.21	0.02	t(544.55) = 9.99	< .001
ΔRating × Young Adolescents	0.15	0.02	t(559.85) = 6.14	< .001
ΔRating × Midadolescents	0.06	0.03	t(541.26) = 2.28	.023
ΔRating × Adults	−0.05	0.02	t(545.82) = −2.69	.007
ΔRating × Social Influence	0.02	0.01	t(9619.13) = 2.70	.007
ΔRating × Children × Social Influence	0.01	0.01	t(9653.10) = 0.71	.478
ΔRating × Young Adolescents × Social Influence	−0.04	0.01	t(9633.64) = −3.44	.001
ΔRating × Midadolescents × Social Influence	−0.01	0.01	t(9609.38) = −0.78	.434
ΔRating × Adults × Social Influence	−0.01	0.01	t(9641.82) = −0.85	.393

Note: Effect coding was used for social-influence group (1 = adults; −1 = teenagers), whereas dummy coding was used for age group; young adults was used as the baseline group. The estimated standard deviations of the random effects were 0.14 (Δrating) and 0.08 (first rating). The standard deviation of the residuals was 1.02.