Título:
Continuidade e mudança no sistema de partidos em
Portugal, base de dados 1993
Methodological report
N.º Identificação:
(APIS0011Men.pdf)
APIS0011
______________________________
arquivo português de informação social
METHODOLOGICAL REPORT
OF THE STUDY:
BACALHAU, MÁRIO & THOMAS BRUNEAU, CONTINUIDADE E MUDANÇA NO
SISTEMA DE PARTIDOS EM PORTUGAL (CONTINUITY AND CHANGE IN THE
PORTUGUESE PARTY SYSTEM), 1993
TABLE OF CONTENTS
Bibliographic Citation
Principal Investigators
Study Description
Sampling
Field work
Weighting Information
Related Publications
Data Management
Request for information
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II
III
IV
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VI
VII
VIII
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I
Bibliographic Citation
● The
bibliographic citation for this dataset is:
Bacalhau, Mário and Thomas Bruneau, Continuidade e mudança no sistema de
partidos em Portugal (Continuity and change in the Portuguese party system) - dataset,
Junho 1993
II
Principal Investigators
Mário Bacalhau, Social and Political Researcher, “Norma” Institute, Portugal
● Thomas Bruneau, Naval Postgraduate School – Monterrey - USA
●
III
Study Description
The Project was sponsored by FLAD – Luso-American Foundation
The different batteries of questions included in the questionnaire tap the following
analytic dimensions:
●
●
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socio-demographic characteristics of respondents;
ideological placement in the left right scale of the respondent, political parties
and political leaders;
media exposure;
membership in interest groups (unions, employers, etc.) and civic associations
(consumers associations, religious, students, etc.) ;
interest on politics; political discussion; political leadership.
opinion about political parties (likes and dislikes, etc.), party leaders (likes and
dislikes, etc.), Armed Forces, Parliament, Constitution, the Head of State, the
European Community, security, the NATO and the church;
government performance evaluations;
preferred government type;
perception of current economic conditions;
knowledge about some political issues;
electoral participation and vote intention;
IV
Sampling
● Population – eligibility requirements: being aged between 18 and 74 and being resident
in mainland Portugal, in localities with 10 or more inhabitants. Those who live isolated or
disseminated, were excluded from the sample frame. The total population figure is
6.831.000, according to the 1991 Census.
● Sample dimension – 2000.
● Sample selection procedure – This is a multi stage probability sample. It was stratified
by region (Coastal North; Oporto and the hinterland; Non coastal North; Coastal Centre
1; Coastal Centre 2; Lisbon and the hinterland; Alentejo; Algarve) and habitat (six
categories of localities by number of inhabitants: less than 1000; 1000 to 2000; 2001 to
10 000; 10 001 to 30.000; 30 001 to 100 000; 100 001 to 500.000; more than 500.000).
1 – For each cell within the region and habitat frame, the number of interviews was
defined in a non proportional manner, according to the size and heterogeneity of each
stratum. The weighting variables adjust for the correct proportion of interviews in each
stratum, according to the population figure.
2 - There were further stages of selection. In each stage, probability methods for the
selection of the units (localities, households and individuals) were used, namely the
Random Route method for households.
3 – The selection of individual respondents was done according Kish method.
4 - There is no further information about non-sample replacement methods used.
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V
Field work
● Organization that conducted the survey field work – though the study was
coordinated by Mário Bacalhau and Thomas Bruneau, the field work was carried out by
an established commercial polling firm – ESEO – e.m. Estudos de Mercado, Ltdª.
● Mode of interview – in person, face-to-face
st
th
● Date – the interviewing began in the 1 of June 1993 and ended in the 25 of the same
month.
VI
Weighting Information
● Weight
1 (pond1) – adjusts the sample to its real proportion. Moreover, it is adjusted to
the total number of residents in mainland Portugal who are at least 18 years old.
● Weight 2 (pond2) – adjusts the results of the legislative elections 1991 – question
p71_4, besides adjusting also the sample to its real proportion. Additionally, it is
adjusted to the total number of registered electors.
VII
Related Publications
● Bacalhau, Mário (1994), Atitudes, Opiniões e Comportamentos Políticos dos
Portugueses: 1973 – 1993, Edição Mário Bacalhau e Thomas Bruneau, Lisboa
VIII
Data Management
● Since
the dataset had been originally built in an old program, it was necessary to adapt it
to the SPSS program and to standardize the format of some of its variables, and check for
data quality in general. This work was done between March and June 2003, by the
members of the project “Portuguese Electoral Behavior and Political Attitudes in a
Comparative Perspective”, more precisely by: Ana Espírito Santo, André Freire, Marina
Costa Lobo, and Pedro Magalhães. This project is located at Social Sciences Institute,
University of Lisbon, Portugal, and it is directed by António Barreto.
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IX
Request for Information
● Request
for information on use of the dataset:
Project “Portuguese Electoral Behaviour and Political Attitudes in a Comparative
Perspective”, Social Sciences Institute, Lisbon, Portugal
Ana Espírito Santo (scientific secretariat)
[email protected]
Avª Prof. Aníbal Bettencourt, 9
1600-189 Lisboa, Portugal
telf: 351 21 780 47 00
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