. Author manuscript; available in PMC: 2022 Aug 24.

Published in final edited form as: J Exp Child Psychol. 2020 Jul 15;199:104907. doi: 10.1016/j.jecp.2020.104907

Table 6.

Results of multilevel models examining interactions among acoustic properties, speaker familiarity, and children’s perceptions of emotional intensity based on the rated emotion.

	Model 3
	b (SE)	p

Angry
Fixed effects
Intercept	1.960 (0.046)
F0 mean	−0.004 (0.001)	<.001
F0 SD	0.001 (0.001)	.524
Speech rate	0.151 (0.038)	<.001
Speaker	−0.103 (0.046)	.025
Random effects
Intercept	0.232 (1.12)	−
Happy
Fixed effects
Intercept	1.861 (0.045)
F0 mean	0.007 (0.000)	<.001
F0 SD	0.008 (0.001)	<.001
Speech rate	0.049 (0.029)	.092
Speaker	−0.083 (0.034)	.016
Random effects
Intercept	0.272 (0.840)	−
Sad
Fixed effects
Intercept	1.848 (0.045)
F0 mean	−0.001 (0.001)	.020
F0 SD	−0.012 (0.001)	<.001
Speech rate	−0.196 (0.030)	<.001
Speaker	0.070 (0.036)	.054
Random effects
Intercept	0.263 (0.885)	−

Note. Bold values are significant. F0, fundamental frequency; SD, standard deviation.