. 2019 May 8;10:827. doi: 10.3389/fpsyg.2019.00827

Table 4.

Hierarchical regression analysis of variables predicting the performance of individuals with schizophrenia on the comprehension and production of sincere, deceitful, and ironic communicative acts on both the linguistic and extralinguistic scales: Model 1 (Attention, Speed processing, and General intelligence), Model 2 (WM, Planning, Cognitive flexibility and Inhibitory control), Model 3 (overall Theory of Mind).

DVs	IVs	R²	R²_Change	F_Change	Sig. F_Change
Linguistic comprehension
Standard	Model 1	0.007	0.007	0.200	0.658
	Model 2	0.040	0.034	1.023	0.320
	Model 3	0.053	0.012	0.362	0.552
Deceit	Model 1	0.007	0.007	0.204	0.655
	Model 2	0.007	0.000	0.003	0.954
	Model 3	0.157	0.150	4.967	0.034
Irony	Model 1	0.010	0.010	0.315	0.579
	Model 2	0.126	0.115	3.831	0.060
	Model 3	0.132	0.006	0.184	0.671
Linguistic production
Standard	Model 1	0.006	0.006	0.192	0.664
	Model 2	0.076	0.070	2.197	0.149
	Model 3	0.282	0.206	8.044	0.008
Deceit	Model 1	0.016	0.016	0.484	0.492
	Model 2	0.050	0.034	1.034	0.318
	Model 3	0.189	0.139	4.801	0.037
Irony	Model 1	0.003	0.003	0.101	0.753
	Model 2	0.005	0.001	0.038	0.847
	Model 3	0.045	0.040	1.171	0.288
Extralinguistic comprehension
Standard	Model 1	0.102	0.102	3.418	0.074
	Model 2	0.130	0.027	0.914	0.347
	Model 3	0.130	0.000	0.009	0.925
Deceit	Model 1	0.000	0.000	0.002	0.964
	Model 2	0.009	0.009	0.257	0.616
	Model 3	0.061	0.052	1.554	0.223
Irony	Model 1	0.008	0.008	0.228	0.636
	Model 2	0.065	0.058	1.796	0.191
	Model 3	0.086	0.020	0.622	0.437
Extralinguistic production
Standard	Model 1	0.036	0.036	1.110	0.300
	Model 2	0.049	0.014	0.413	0.525
	Model 3	0.107	0.057	1.798	0.191
Deceit	Model 1	0.005	0.005	0.137	0.714
	Model 2	0.020	0.015	0.444	0.510
	Model 3	0.080	0.060	1.833	0.187
Irony	Model 1	0.000	0.000	0.006	0.938
	Model 2	0.022	0.022	0.639	0.431
	Model 3	0.022	0.000	0.007	0.934

The table shows the adjusted regression coefficients (R²_Adj) of each predictor variable, the change in R² after the addition of the planning and theory of mind variables (R²_Change), the change in F (F_Change) and the significance value (Sig F_Change). The level of significance for all statistical tests is < 0.005.