. 2020 Jun 22;10:10015. doi: 10.1038/s41598-020-66529-1

Table 2.

Nested mixed effects models for the dependent variable inclusion of other in the self (IOS) separately investigating the effects of the three independent variables familiarity with the music, enjoyment of the music and perceived beat clarity. Every model includes the random effect (1 | participant). The Akaike information criterion (AIC), Bayesian information criterion (BIC), marginal R² (i.e., variance explained by fixed effects only), and conditional R² (i.e., variance explained by fixed and random effects) are provided. χ² and p values refer to model comparisons to the previous model (unless stated otherwise) using likelihood ratio tests. Null model: IOS ~ (1 | participant). Best fitting models are marked in bold letters.

Dependent variable: IOS; Independent variables: Synchrony and Musical Pattern
Model	AIC	BIC	Marginal R²	Conditional R²	Improvement in Model Fit
Model	AIC	BIC	Marginal R²	Conditional R²	χ² (df)	p
Null Model	11663	11679		0.306
IOS ~ Synchrony	11096	11116	0.247	0.603	569.56 (1)	<0.001
IOS ~ Synchrony + Musical Pattern	11089	11120	0.251	0.607	10.83 (2)	0.004
IOS ~ Synchrony × Musical Pattern	11088	11129	0.252	0.608	4.89 (2)	0.087
Dependent variable: IOS; Added independent variable: Music Familiarity
Model	AIC	BIC	Marginal R²	Conditional R²	Improvement in Model Fit
Model	AIC	BIC	Marginal R²	Conditional R²	χ² (df)	p
IOS ~ Synchrony + Musical Pattern + Familiarity	11077	11113	0.261	0.607	13.68 (1)°	<0.001°
IOS ~ Synchrony × Familiarity + Musical Pattern	11079	11120	0.261	0.607	0.11 (1)	0.745
Dependent variable: IOS; Added independent variable: Music Enjoyment
Model	AIC	BIC	Marginal R²	Conditional R²	Improvement in Model Fit
Model	AIC	BIC	Marginal R²	Conditional R²	χ² (df)	p
IOS ~ Synchrony + Musical Pattern + Enjoyment	11058	11093	0.273	0.612	33.26 (1)°	<0.001°
IOS ~ Synchrony × Enjoyment + Musical Pattern	11048	11088	0.276	0.617	12.13 (1)	<0.001
Dependent variable: IOS; Added independent variable: Beat Clarity
Model	AIC	BIC	Marginal R²	Conditional R²	Improvement in Model Fit
Model	AIC	BIC	Marginal R²	Conditional R²	χ² (df)	p
IOS ~ Synchrony + Musical Pattern + Beat Clarity	11049	11085	0.281	0.615	41.59 (1)°	<0.001°
IOS ~ Synchrony × Beat Clarity + Musical Pattern	11014	11055	0.292	0.628	37.19 (1)	<0.001

°Improvement in model fit as compared to model IOS ~ Synchrony + Musical Pattern.