Istituti di ricerca

Statistiche e bias dei vari sondaggisti italiani

Istituto	Lega	PD	M5S	FdI	FI	Sinistra	+Europa	Verdi	Azione	IV	Sondaggi
Tecnè	-0.3	0.1	-0.5	0.1	1.3	-0.1	-0.1	-0.4	-0.1	-0.1	121
SWG	0.7	-0.5	-0.2	-0.1	-1.0	0.2	0.1	0.0	0.4	0.3	114
EMG	-0.5	0.3	0.1	0.2	-0.0	-0.2	-0.1	0.9	0.1	-0.0	78
Index	0.6	0.1	-0.1	-0.1	-0.6	0.2	-0.1	0.0	0.1	0.3	64
Termometro Politico	1.9	0.1	-0.6	-0.1	-1.0	-0.2	-0.4	0.1	0.1	-0.3	61
Ixè	-2.1	0.9	0.5	0.3	0.6	0.2	0.5	-0.9	-0.9	0.0	54
Piepoli	-1.3	-0.1	0.3	-0.4	0.9	-0.3	0.1	-0.0	-0.6	-0.1	52
Noto Sondaggi	0.5	0.0	-1.0	-0.0	-0.1	-0.3	-0.1	0.3	0.3	-0.3	49
Euromedia	-0.4	-0.5	-0.4	0.1	0.7	0.0	0.1	0.2	0.7	-0.4	48
Ipsos	0.8	-0.5	0.7	0.1	-0.1	-0.2	-0.0	-0.3	-0.3	0.2	39
Demopolis	-0.2	-0.1	0.7	-0.1	-0.6	0.4	-0.2	0.3	-0.3		36
BiDiMedia	-0.9	0.4	-0.2	-0.4	-0.6	-0.2	-0.1	0.3	-0.2	-0.0	29
Scenari Politici–Winpoll	1.6	1.1	-1.7	0.3	-0.9	-0.3	-0.3	-0.5	0.0	-0.0	23
Demos & Pi	-1.0	-0.2	0.3	-0.2	-0.0	0.4	0.4	-0.6	-0.3	0.4	18
GPF	-2.0	-0.5	3.0	0.5	1.2	-0.2	-0.1	-0.0	0.5		14
Quorum	-0.4	0.2	0.0	0.4	-0.0	0.5	-0.0	-0.1	-0.2		9
Lorien Consulting	-0.8	-0.5	-0.7	0.6	1.7	0.4	-0.2				6
IZI	-3.3	-0.8	0.4	0.9	0.4		0.1	-0.1			3
MG Research	0.1	2.8	-2.3	0.0	-0.9	0.2	0.7	0.2	1.1		2
Lab2101	0.8	2.1	0.2	-0.1	-0.3	0.5	-0.4	0.2	0.1	-0.0	2
CISE	-1.6	-0.3	0.9	-0.6	1.5	0.1	1.3				2
Demoskopea	-1.8	0.1	3.3	0.5	-0.2	0.2	0.5	0.3	0.2	0.4	1
Eumetra	1.0	0.6	1.0	-0.4	0.7						1
Analisi Politica	-0.1	0.3	0.4	-0.6	0.2	0.1	0.1	-0.0	0.2	-0.7	1

Come funziona: I sondaggi dei vari istituti sono comparati alla linea di trend calcolata da Italian Polls e la mediana degli “errori” rappresenta il bias dell’istituto verso un dato partito