Table 6.

Results of the two-way mixed-design ANOVA with GROUP (theatre; controls) as between subjects' factor and TIME (T0, T1) as within subjects' factor, comparing scores of clinical scales (or subscales, top part of the table) and of neuropsychological tests (lower part of the table). Asterisk (∗) indicates subscales of Parkinson's Disease Quality of Life Scale (PDQ39). η_p² represents the partial eta-squared; values higher than 0.14 indicate strong effect sizes (see Section 2.5 for further details). p values less than 0.05 as well as the corresponding F and η_p² values are indicated in bold. Unified UPDRS: Parkinson's Disease Rating Scale; GFQ: Gait and Falls Questionnaire; PDSS: Parkinson's Disease Sleep Scale; TR: time for reading words; TC: time for naming color; TI: time for naming color during interference.

	TIME			GROUP			TIME × GROUP
	F(1,22)	p value	η p 2	F(1,22)	p value	η p 2	F(1,22)	p value	η p 2
UPDRS I	0.83	0.37	0.04	0.004	0.95	<0.001	0.29	0.59	0.01
UPDRS II	0.26	0.62	0.01	0.22	0.64	0.01	1.03	0.32	0.04
UPDRS III	1.55	0.23	0.07	0.19	0.67	0.01	0.44	0.51	0.02
UPDRS IV	1.16	0.29	0.05	0.04	0.85	0.002	1.98	0.17	0.08
GFQ	0.26	0.62	0.01	4.06	0.06	0.16	0.01	0.93	<0.001
PDQ39	0.47	0.49	0.02	0.26	0.61	0.01	3.92	0.06	0.15
Mobility∗	3.09	0.09	0.12	0.41	0.53	0.02	0.37	0.55	0.02
Activities of daily living∗	0.57	0.46	0.02	0.06	0.81	0.003	0.86	0.36	0.04
Emotional well-being∗	5.4	0.03	0.19	0.71	0.41	0.03	4.2	0.05	0.16
Stigma∗	14.1	0.001	0.39	3.24	0.08	0.13	23.3	<0.001	0.51
Social support∗	1.44	0.24	0.61	0.12	0.73	0.005	2.82	0.11	0.11
Cognition∗	5.13	0.03	0.19	0.72	0.41	0.03	6.3	0.02	0.22
Communication∗	0.14	0.71	0.006	0.01	0.9	0.001	5.11	0.03	0.19
Bodily discomfort∗	1.26	0.27	0.05	0.82	0.38	0.04	0.31	0.58	0.01
Beck Depression Inventory	29.6	<0.001	0.57	0.27	0.6	0.12	34.4	<0.001	0.61
Apathy Evaluation Scale	8.78	0.007	0.28	0.09	0.76	0.004	18.93	<0.001	0.46
Hamilton Anxiety Rating Scale	1.47	0.24	0.06	0.85	0.37	0.04	2.73	0.11	0.11
PDSS	4.34	0.049	0.16	0.13	0.27	0.06	8.7	0.007	0.28
Raven test	0.65	0.43	0.03	0.13	0.91	0.001	0.13	0.9	0.001
Stroop test (TR)	6.81	0.016	0.24	0.14	0.91	0.001	14.4	0.001	0.4
Stroop test (TC)	0.82	0.37	0.04	1.59	0.22	0.07	2.28	0.14	0.09
Stroop test (TI)	0.06	0.81	0.003	1.15	0.29	0.05	0.35	0.56	0.016
Rey test (immediate recall)	0.24	0.63	0.01	1.84	0.19	0.08	<0.001	1	<0.001
Rey test (delayed recall)	0.94	0.34	0.04	0.04	0.84	0.002	0.1	0.75	0.005
Digit span test (forward)	0.08	0.77	0.004	0.03	0.87	0.001	<0.001	1	<0.001
Digit span test (backward)	0.37	0.55	0.02	0.07	0.8	0.003	0.83	0.37	0.04
Phonological fluency test	0.6	0.44	0.03	2.12	0.16	0.09	<0.001	1	<0.001