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This concerns the third measurement of the study, fielded in January 2009. Alike to the first and second measurement, this measurement also concerned twelve statements, but these were different to the ones presented in 2008. The statements were identical for all respondents, but the response scale could differ per respondent. In February 2009, the same statements (with a different response scale) were fielded as in January 2009.

This study focuses on the impact of number of response categories on response behavior. The study consists of four measurements:

In January 2008, all respondents were presented with twelve statements. The statements were identical for each respondent, but the response scale could differ per respondent. Each respondent was randomly assigned to one of nine groups.

In February 2008, a second measurement was taken among the same respondents. They were presented the same statements as in January, but with a different response scale. The type of response scale depended on the group to which the respondents had been assigned in January 2008. Panel members that had not participated in January were able to join, they were assigned to one of the groups at random.

A third and fourth measurement were taken in the LISS panel in January and February 2009. These measurements also concerned twelve statements, but these were different to the ones presented in 2008. The statements were identical for all respondents, but the response scale could differ per respondent. In February 2009, the same statements (with a different response scale) were fielded as in January 2009.

The January measurements were taken following a questionnaire on religion and ethnicity. The February measurements were taken following a questionnaire on leisure time activities (in 2008, the statements were preceded by a questionnaire on leisure time activities and Internet use).

In February 2008, a second measurement was taken among the same respondents as in January 2008. They were presented the same statements as in January, but with a different response scale. The type of response scale depended on the group to which the respondents had been assigned in January.Panel members that had not participated in January were able to join, they were assigned to one of the groups at random.

This research aims at exploring response differences between two modes by comparing the face-to-face surveys of the Dutch ‘European Values Study’ of 2008 with a time parallel web survey based on a part of the EVS in the context of the LISS panel research project.

This research investigates the perception of society about new technological possibilities to communicate with health care professionals, such as a medical video consultation.

This questionnaire is about politics in the Netherlands and in particular, opinions on democracy, the House of Representatives, citizens’ assemblies, referendums, and different societal issues.

This study was conducted as a part of the Open Probability-Based Panel Alliance (OPPA) and is about the perception of sexual harassment.
The codebook files codebook_qc19a_EN_1.0.pdf and codebook_qc19a_EN_1.0.pdf and data files qc19a_EN_1.0p.sav and qc19a_EN_1.0p.dta only apply to the data collected in the LISS panel. The harmonized data files Harmonized_OPPA_Schwarz_qc19a_EN_1.0p.sav and Harmonized_OPPA_Schwarz_qc19a_EN_1.0p.dta contains the data collected in all 4 panels.