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FAQ

Acquiring the SHP Data

How can I obtain the data ?

You just have to sign this contract and send one signed version of it with all the pages by mail. One copy will be countersigned by the SHP and will be sent back to you together with the data. To acquire the CNEF data please find all information in the following link.

How much do the data cost ?

You get the data free of costs, but you need to sign the contract.

Am I allowed to share the data with other people ?

No part of the data may be shown or displayed to any other person unless that person is an authorised user. An authorised user is someone who has signed a contract and has been granted access to the same dataset. Individuals working on a research project together need to apply for the dataset independently.

I am teaching a course/ seminar, am I allowed to share the data with the students of my seminar ?

You are responsible for discussing with and for ensuring that your student(s) adhere to privacy and security protocols for use of this data. You must also make sure that the dataset is appropriately disposed of once the student ceases to be your student. These protocols are clearly set out in the contract you must sign to get access to the dataset. If you are in any doubt about these protocols, please e-mail swisspanel@fors.unil.ch.

Using the data

How to select valid cases and distinguish the two samples ?

The two samples may be easily distinguished by the variable FILTER$$ (SHP_I = 1; SHP_II = 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).

Combining data files

Where can I find the variable ‘sex’ ?

Every individual/personal file contains the variable ‘sex’ with the corresponding year (sex99, sex00, sex01 etc.). Furthermore the same variable, without the year, is in the file SHP_MP (Master File-Person). Besides all sociodemographic characteristics that do not change as well as some information regarding the response status are in the file SHP_MP (Master File-Person).
For questions regarding the construction of specific data sets, for example: How do I match respondents with the sex variable? How do I match respondents across waves? How do I match respondents to households? How do I match couples? Or how do I match children to their parents? How do I match vertical biographic data to the individual data file?

  1. You will find examples about how to match different files in Stata here, in SAS here and in SPSS here.
  2. Examples for merging vertical biographic data file with horizontal CATI individual data file are available in Stata, SAS and SPSS.

Weighting

Which weight should I use in cross sectional or longitudinal analyses ?

You’ll find the answer here.

Why do some cases have a weight of 0 ? Why does the number of longitudinal cases not correspond to the number of cases with a weight greater than 0 ?

In 2000, 10 individuals younger than 14 were interviewed. Because the minimum age to be eligible for an individual interview is 14, they received a weight of 0. Hence, he number of respondents interviewed in 2000 was 6345 and the number of respondents with a weight greater than 0 is 6335.
In 2001, 5433 individuals answered the individual questionnaire, of which four individuals that had received weight zero in wave 2 (2000) are included and again receive weight zero in wave 3 (2001). Therefore, the number of respondents with a weight greater than zero in 2001 is 5429.

Other questions

Why does the Panel survey often use questions with answers on an 11-point scale ?

You’ll find the answer here.

Why does the panel carry out the survey annually ?

You’ll find the answer here.