Series "Escala de probabilidad (0-10) de votar en elecciones generales (Nacional)"

The CIS

About us

Powers attributed to the CIS in accordance with article 3 of its Law and its Royal Development Decree

Organic structure established by the Royal Decree of the CIS for the exercise of its powers and holders of the different units

Regulations

Set of rules that regulate the operation and structure of the CIS

Previous presidents

Chronological list of the presidents of the Institute of Public Opinion (IOP) and the CIS since its foundation in 1963

National sociology and political science prize

National award granted by the CIS in the field of Sociology and Political Science for an academic career

Studies

General Information

The main activity of the CIS for the scientific knowledge of Spanish society is its Studies

FAQs - Frequently Asked Questions

Information on how surveys are carried out at the CIS

Methodologies

Main methodologies used by the CIS for conducting surveys and studies

Preview of results

Provisional results of the surveys prepared by the CIS

Catalogue of Studies

Complete collection of studies carried out by the institution, including the questions, series, and related documentation.

FID

Integrated extraction of microdata from a set of variables for CIS studies

Specific requests

Public attention. Requests for information and tailor-made preparations

General Social Survey

Comparative survey on the characteristics of citizenship in Spain

Conditions for reusing CIS data

Rules and Legal Requirements for accessing and using CIS data

Publications

General information

Access to all information regarding Publications made by the CIS

Bookshop

In-person and online sales of books published by the publishing unit

Collections

Dissemination of the most relevant research carried out in the field of social sciences

REIS

Open quarterly scientific periodical publication. Spanish Journal of Sociological Research. Submission of manuscripts

Yearbooks

Compilation of the main data obtained through opinion barometers carried out over a year by this institution

Historical publications

Publications such as the Spanish Journal of Public Opinion (1965-1977) and dissemination of public opinion studies

España 2025: Estructura y Cambio social

Access to the main transparency and good governance contents of the CIS

Library

Training and support

Training scholarships

Training scholarships for postgraduates wishing to take part in the scientific activity of the CIS

Research grants

Grants to promote the use of the Data Bank and the completion of doctoral theses

Postgraduate course

Training courses in applied social research and data analysis for postgraduates, with tuition support

Citizen services

Transparency and accountability

Access to the main transparency and good governance contents of the CIS

Public employment

Public employment calls managed by the CIS

Electronic Office

Access to the Ministry's Electronic Headquarters

Data Protection

Access to information on CIS data protection

R&D: Initial Deposit Plan

Procedure for the ‘Initial Deposit Plan of R&D projects with social surveys’

Internal information channel

Channel for reporting infringements in the field of actions of the bodies of the Center for Sociological Research

Press Room

News

General information

Code

B.6.06.01.065

Start date

21/01/2008

End date

02/02/2026

Points

Question:

Stages: Etapa 1 : (21-01-2008 - 01-03-2020) Entrevista presencial (PAPI/CAPI).
Etapa 2 : (09-07-2020 - 14-11-2023) Entrevista telefónica (CATI) .
Etapa 3 : (01-11-2023 - Actualidad) Entrevista telefónica (CATI) con ponderación con ajuste por nivel de estudios.

Name	COOKIE_SUPPORT
Host	www.cis.es
Duration	365 días
Type	First-party
Category	Functional cookies
Description	Indicates whether the browser supports cookies

Name	GUEST_LANGUAGE_ID
Host	www.cis.es
Duration	365 días
Type	First-party
Category	Functional cookies
Description	Identifies the user's language

Name	JSESSIONID
Host	www.cis.es
Duration	365 días
Type	First-party
Category	Functional cookies
Description	Identifies the user's session

Name	LFR_SESSION_STATE_*
Host	www.cis.es
Duration	365 días
Type	First-party
Category	Functional cookies
Description	Used to identify and authenticate the user

Name	_ga*
Host	.cis.es
Duration	730 días
Type	Third-party
Category	Analytics cookies
Description	Used to store statistical data about pages.