Swiss Household Panel: Small User Guide 2009
Contents
1. YEAR WAVE SHP_I SHP_Il SHP_I ll A B A B n 1999 1 5 074 100 100 2000 2 4 425 87 87 2001 3 4 139 82 94 2002 4 3 582 71 87 2003 5 3 227 64 90 2004 6 1 2 837 56 88 2 538 100 100 5 375 2005 7 2 2 457 48 87 1 799 71 71 4 256 2006 8 3 2 537 50 103 1 684 66 94 4 221 2007 9 4 2 817 56 111 1 494 58 89 4 311 2008 10 5 2 718 54 96 1 546 61 103 4 264 These percentages are calculated on the basis of the number of interviews conducted in the first year 1999 or 2004 These percentages are calculated on the basis of the number of interviews conducted in the previous year They may therefore exceed 100 Since 2006 the number of interviews increases due to various measures taken to convert households who were abandoned earlier because of double refusal into respondents Table 2 Number of persons validly interviewed in SHP_I and SHP_lII for the years 1999 2008 YEAR WAVE SHP_I SHP_Il SHP_I ll SHP_I fully n A B n A B n longitudinal A B 1999 1 7 799 100 100 7 799 100 100 2000 2 7 073 91 91 6 335 81 81 2001 3 6 601 85 93 5 429 69 86 2002 4 5 700 73 86 4 480 57 83 2003 5 5 220 67 92 3 888 50 87 2004 6 1 4 413 57 85 3 654 100 100 8 067 3 076 39 79 2005 7 2 3 888 50 88 2 649 72 72 6 537 2 622 34 85 2006 8 3 4 091 52 105 2 568 70 97 6 659 2 399 31 91 2007 9 4 4 630 59 113 2 350 64 92 6 980 2 209 28 92 2008 10 5 4 494 58 97 2 410 66 103 6 904 2 060 26 932. swiss foundation for research in social sciences The Biography Files include a two horizontal files with rows representing individuals Biography Master File SHPO_MBI and Biography Data File SHPO_BH_USER and b one vertical file for each of the eight covered domains living arrangement periods outside Switzerland changes of civil status learned professions education stages work life family events and retirement with rows representing events and not individuals if appropriate SHPO_BV amp amp _USER More specifically the structure of the biography files is as follows The Biography Master File SHPO_MBI includes both population weights wp0O0tbgp and sample weights wpO0Otbgs idpers q_source wp00tbgp wp00tbgs The Biography Data File SHPO_BH_USER sav are delivered in two formats The horizontal file large format contains 281 variables which represent the person s characteristics states in each domain amp amp and for a fixed number of periods or denoting the domain characteristic 01 last two digits as well as individual population weights wp00tbgp and sample weights wpO0O0tbgs idpers q_source Bh amp amp 01 Bh amp amp 02 Bh amp amp 03 Bh amp amp 07 wpO0O0tbgp wpO00tbgs The vertical files SHPO_BV amp amp _USER are structured as follows Questions and variables of all the vertical data files
3. a aaa are calculated on the basis of the number of interviews conducted in the first year 1999 or These percentages are calculated on the basis of the number of interviews conducted in the previous year They may therefore exceed 100 Since 2006 the number of interviews increases due to various measures taken to convert households who were abandoned earlier because of double refusal into respondents FORS swiss foundation for research in social sciences 8 SHP Weights Cross sectional and longitudinal weights correct for unit non response at least in part at the household and individual levels It is up to the users of these data to apply the appropriate weights depending on what sort of analyses they want to obtain It is essential to use weighting otherwise if the appropriate weighting is not applied the estimations carried out cannot be considered to be representative of the population under observation Cross sectional weights always refer to the current year both for households and for individuals whereas longitudinal weights individuals always extrapolate to the population resident in Switzerland in 1999 for SHP_I and to the population resident in Switzerland in 2004 for SHP_Il The combined longitudinal weightings for SHP_I and SHP_Il also refer to the population resident in Switzerland in 2004 For more details please see Recommendations and Practical Examples for Using Weighting in Documentation Methods
4. Weighting 9 SHP Biography Survey In 2001 and 2002 a retrospective biographical survey was conducted to obtain at a single occasion additional information about the respondents life course prior to the panel study To this end a retrospective biographical questionnaire was developed with questions regarding educational working and family history BlIO d quest pdf This paper and pencil questionnaire was sent to the SHP_ respondents by mail and was self administered In order to assess the potentially negative impact of the self administered biographical questionnaire on the participation in subsequent waves of the yearly CATI a test survey was conducted in 2001 The results showed that that the drop out rates did not increase substantially as a result of the questionnaire sent in between two waves Scherpenzeel et al SHP Working Paper_5 02 Consequently the main survey was carried out in 2002 with those participants that had not been part of the test survey SHP_ biographical data are available for 5 560 individuals with the 2001 and 2002 surveys combined Some variables only exist for one of the survey years e g education history only for 2002 or only in an aggregated form e g living arrangement for 2001 The overall participation rate was 53 but over 80 among fully longitudinal panel survey respondents years 1999 2004 participated in the biography survey Budowski and Wernli SHP Working Paper_2_04 FORS
5. agreement of the author these documents will be made available on the SHP website Users of SHP data automatically become members of the research network Living in Switzerland contact information research interests and title of reports and publications are displayed on the SHP website Publications in paper or electronic format based on SHP data must carry the following mention This study has been realized using the data collected by the Swiss Household Panel SHP which is based at the Swiss Centre of Expertise in the Social Sciences FORS The project is financed by the Swiss National Science Foundation see Data acquiring the data on our website for the French and German versions of this mention Publications tables and figures based on SHP data in paper or electronic format must carry the following mention Source Swiss Household Panel SHP Data users and collaborators are to comply with the Swiss Regulations regarding data protection in particular users are to refrain from trying to identify a particular household or person and are strictly prohibited to use information for anything other than scientific research purposes Published results shall not contain any information making it possible to identify any SHP household or interviewed person 12
6. are described in one single document cf QuestionML BIO VERTICAL Each vertical file includes the person identification idpers the source survey q_source 2001 or 2002 and if there are possibly several rows per person spells the spell index bv amp amp _idx and finally the variables denoting the subject bv amp amp 001 abbreviated by amp amp File including information on living arrangement SHPO_BVLA_USER bvla001 bvla014 bvla100 idpers q_source bvla_idx gt From the 5 560 persons who filled out the biographical questionnaire only 5 361 have a weight over zero for methodological reasons weights of zero had to be attributed to 199 persons FORS swiss foundation for research in social sciences File including information on periods outside Switzerland SHPO_BVSA_USER idpers q_source bvsa_idx bvsa001 bvsa002 bvsa003 File including information on changes of civil status SHPO_BVCS_USER idpers q_source bvcs_idx bvcs001 bvcs002 bvcs003 bvcs004 bvcs005 File including information on earned professions SHPO_BVLP_USER idpers q_source bvlp_idx bvlp001 bvlp002 File including information on education stages SHPO_BVED_USER idpers q_source bved_idx bved001 bved002 bved003 bved004 File includin
7. FORS swiss foundation for research in social sciences Swiss Household Panel Small User Guide December 2009 Waves 1 to 10 Contents 1 SHP Project 2 2 Dissemination of Waves 1 to 10 2 3 SHP Additional Data on request 3 4 SHP Data Organisation 4 5 Selection of SHP Samples Cases and Files and Assembling 5 6 SHP Data Quality 5 7 SHP Samples and Participation 6 8 SHP Weights 8 9 SHP Biography Survey 8 10 SHP Interviewer Survey 10 Appendix Regulations regarding data use and data protection 12 FORS swiss foundation for research in social sciences 1 SHP Project Since 1999 the principal aim of the Swiss Household Panel SHP is to observe micro social change in particular the dynamics of changing living conditions in the population of Switzerland http Awww swisspanel ch The project is funded by the Swiss National Science Foundation SNSF and is run at the Swiss Centre of Expertise in the Social Sciences FORS located at the University of Lausanne Since its origin the survey has covered a broad range of topics and approaches in the social sciences comprehensive survey and includes both subjective assessments and concrete information The following topics are covered living conditions and living arrangements housing employment and labour income civic religious and political participation and behaviour health and quality of life social networks and social support social origin life history and lif
8. e events The field work is conducted annually from September to February by the institute M I S Trend in Lausanne and Bern using computer assisted telephone interviewing CATI The new final data are available for users approximately ten months after collection 2 Dissemination of Waves 1 to 10 Authorized users see Acquiring the data on our website will receive a username and password allowing them to download the data from our website http www swisspanel ch Data that can be downloaded are e the SHP_ data for the years 1999 through 2008 waves 1 to 10 for households recruited in 1999 e the SHP_lI data for the years 2004 through 2008 waves 1 to 5 for households recruited in 2004 e the SHP biographical data for 5 560 SHP_ individuals e the SHP interviewer data for the years 2000 and 2003 to 2008 As we constantly improve the data quality and correct errors discovered in the data the users are asked to use the SHP data from this data delivery even for previous waves The SHP data documentation and regular updates are available on our websites http www swisspanel ch http www fors unil ch i SHP_I denotes the households recruited in 1999 a SHP_Il denotes the households recruited in 2004 FORS swiss foundation for research in social sciences 3 SHP Additional Data on request On request users can obtain the following additional data 1 for imputed income data original income data or sim
9. e is much stronger Cramer s V improves from 70 to 82 2 Income Variables Cases labelled as other error have been rechecked and plausibilized for all waves from 2001 on As a consequence the number of valid cases has increased for all income variables Household income has been recalculated where necessary We also conducted some additional retrospective plausibility checks which lead to some corrections in the constructed yearly income variables The original income variables are available on demand from the SHP see SHP additional data 3 Education Variables new variables are now available allowing more differentiation at the tertiary level Moreover in 2009 new variables were constructed in order to improve the analytical potential of the SHP see our full User Guide Data users will now find among others a new variable of social position corresponding to the European Socio economic FORS swiss foundation for research in social sciences Classification and a typology of professional integration Paugam typology syntax by Gazareth Iglesias and Wyss University of Neuchatel Not all the data could be verified systematically for plausibility Although no significant data collection errors have been found up to date data users are encouraged to be suspicious and to report any problems such as unusual marginal distributions 7 SHP Samples and Participation The SHP first sample SHP_1 is a stratified random sampl
10. e of private households whose members represent the non institutional resident population in Switzerland In 1999 the methodology section of the Swiss Federal Statistical Office drew a random sample in each of the seven major statistical regions of Switzerland on the basis of the Swiss telephone directory SRH Stichprobenregister fur Haushalterhebungen which covers over 95 of all private households Selected in this way the households are a representative sample of the various social groups in all regions of Switzerland However as the interviews are carried out in the three official national languages German French and Italian only there might be a certain bias concerning how population groups who have recently migrated to Switzerland are represented In order to compensate for the erosion of the original 1999 sample deaths hospitalisation migration refusals a refreshment random sample of new households was injected in 2004 SHP_II following the same methodology With respect to response rate the following tables 1 and 2 indicate the number of validly interviewed households and persons for the years 1999 2008 For further information see the http Awww swisspanel ch project participation index php lang en page for all of the figures of participating units since 1999 FORS swiss foundation for research in social sciences Table 1 Number of households validly interviewed in SHP_I and SHP_II for the years 1999 2008
11. g information on work life SHPO_BVWL_USER idpers q_source bvwl_idx bvwl001 bvla007 File including information on family events SHPO_BVFE_USER bvfe001 bvfe012 idpers q_source File including information on retirement SHPO_BVRE_USER bvre001 bvre002 idpers q_source Two examples of data extraction from a vertical file into a horizontal file are provided in SPSS SAS and STATA syntax Data Syntaxes Biography 10 SHP Interviewer Survey SHP Interviewer data have been collected in the years 2000 2003 to 2008 by means of paper and pencil questionnaires The questionnaires measure a number of interviewer characteristics demographic traits such as sex age language and education but also characteristics such as the attitude of the interviewers towards this type of study and towards sensitive questions According to the SHP research interests the questionnaires have been changing over time In 2001 the Swiss Household Panel SHP carried out a first analysis of the interviewer effects on the response and on the data of the second panel wave interviewer data for 2000 SHP_I wave 2 The two objectives of this study were Scherpenzeel SHP 10 FORS swiss foundation for research in social sciences Working Paper_8_ 02 first to test whether there is variance among interviewers and second to relate possible interviewer effects to
12. nnaire together Unique with the weights specific to the biographical survey Horizontal Biography File This horizontal file contains unique biographical data SHPO_BH_USER collected from persons validly interviewed in 2001 or 2002 These vertical files contain unique biographical data Vertical Biography Files collected from persons validly interviewed in 2001 or SHPO_BV amp amp _USER 2002 each file corresponding to one topic Biography Survey Interviewer Files Yearly These files contain interviewer characteristics and SHP _V_USER 2000 2003 attitudes matching of these files with household and 2008 individual data by means of the variable idint Interviewer Survey Note stands for the year of interview e g 01 for 2001 5 Selection of SHP Samples Cases and Files and Assembling The two samples may be easily distinguished by the variable FILTER SHP_ 1 SHP_Il 0 Valid cases may be easily selected by 1 the variable STATHH at the household level where 1 Household questionnaire completed and 2 the variable STATUS at the individual level where 0 individual questionnaire completed Cross sectional and longitudinal files are most easily created by the data user in the following order 1 Selection of households or individuals within the corresponding master files and creation of a selection file FORS swiss foundation for research in social sciences 2 Merging of the selecti
13. on file with corresponding household or individual files 3 Selection of a sub sample based on the variables in the merged data set Examples of file creation are provided in SPSS SAS and STATA syntax Data Syntaxes The biographical and interviewer data can be merged with individual files by using respectively the variables idpers and idint respectively 6 SHP Data Quality The SHP Data 1999 2008 SHP_I and SHP_II are among others e Cleaned elimination of CATI related technical errors standardization of reference periods e Labelled the standard variable names and value labels are in English In addition labels are also provided in German French and Italian e Verified Sex age civil status of all individuals and personal links between members of households have been verified and corrected if necessary In particular some variables have been re plausibilised or constructed also for previous waves in 2007 and 2008 1 The variables regarding the social position Wright CSP Goldthorpe Treiman and CAMSIS were thoroughly scrutinised and have been completely reconstructed from wave 1 1999 to wave 8 2006 Wernli SHP Working Paper_2_07 The reconstruction of the social position variables leads to a considerable improvement Though the correlations between the initially constructed social position variables and the reconstructed ones remain high Cramer s V 2 83 the average longitudinal coherence from wave to wav
14. rded since Master File Individual Unique 1999 with information on the sex of each person month SHP_MP in WA_ALL and year of birth and information on the yearly participation Social Origin Unique This file contains information on the social origin for all SHP_SO in WA_ALL individuals which were personally interviewed in any of the waves since 1999 FORS swiss foundation for research in social sciences Activity Calendar This file contains information on the work activity SHP_CA in WA_ALL calendar for all persons interviewed by the means of the individual questionnaire This file contains information on the ast job for all Last Job individuals who were a inactive at the time of their first SHP_LJ in WA_ALL interview and b interviewed in person or by proxy in any of the waves since 1999 i These yearly files contain all households for which Household Files Yearly completed grids are available participating SHP _H_USER 1999 2008 households since 1999 with the data collected by the means of the household questionnaires These yearly files contain all registered household Individual Files Yearly members from participating households since 1999 SHP _P_USER 1999 2008 with the data gathered by the means of the individual and proxy questionnaires Master File Biography This master file contains all individuals who filled out in SHPO_MBI 2001 or 2002 the biographical questio
15. the characteristics of the interviewers as measured by the interviewer questionnaire In 2004 and 2005 the study of the interviewer effects was repeated and extended Scherpenzeel SHP Working Paper_3_05 Lipps SHP Working Paper_2_05 Attention The values of the variable idint in the Interviewer data files have been coded in order to protect the identity of the Interviewers Consequently the merging of the Interviewer data with the Household and Individual level files is only possible after de coding Please contact oliver lipps fors unil ch Contact Should you have any questions do not hesitate to contact us swisspanel fors unil ch Phone 41 21 692 37 30 Fax 41 21 692 37 35 11 FORS swiss foundation for research in social sciences Appendix Regulations regarding data use and data protection The use of the SHP data for commercial purposes is strictly forbidden The SHP data are for the exclusive use of the person s signing the contract it is strictly forbidden to make part or all of the data available to a third party Ina research team all users have to sign the contract individually Research topics and changes thereof are to be reported to the SHP team Intended publications or semi formal reports grey literature using the SHP data must be announced as soon as possible to the SHP team A copy of research reports and manuscripts submitted to journals must be sent to the SHP Team In case of
16. ulated taxes data please contact ursina kuhn fors unil ch 2 for paradata call data please contact oliver lipps fors unil ch 3 for the non response survey 2004 data please contact robin tillmann fors unil ch Under certain conditions the opportunity to merge SHP data with communal data exists please contact boris wernli fors unil ch For using the SHP data in a teaching context please contact robin tillmann fors unil ch Moreover users can obtain the Cross National Equivalent File CNEF version of the data by signing a special contract see http www swisspanel ch file cnef_contract cnef_shp datacontract pdf The CNEF contains equivalently defined variables for the US Panel Study of Income Dynamics PSID the German Socio Economic Panel GSOEP the British Household Panel Study BHPS the Household Income and Labour Dynamics in Australia HILDA the Canadian Survey of Labour and Income Dynamics SLID and since 2008 the Swiss Household Panel SHP The data are designed to allow cross national researchers access to simplified versions of these panels 4 SHP Data Organisation The SHP Data Files are organised as follows This file contains all households ever recorded since 1999 with information on yearly participation at the grid SHP_MH in WA_ALL and household questionnaire levels and reasons for non participation Master File Household Unique A a This file contains all individuals ever reco
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