Acknowledgements; Contents; List of Tables; List of Figures; List of Abbreviations; 1 Introduction; 2 Survey Nonresponse; 2.1 International Trends in Response Rates; 2.2 Consequences of Nonresponse on Data Quality; 2.3 Research Designs for the Assessment of Nonresponse Bias; 2.3.1 Comparison of Response Rates across Subgroups; 2.3.2 Comparison of Aggregate Level Estimates from Survey Data with Estimates from External Sources; 2.3.3 Enrichment of Survey Data by Record Data; 2.3.4 Collection of Core Information on Nonrespondents 2.3.5 Comparison of Subgroups with Different Response Propensities2.4 The Conceptual Framework for Survey Cooperation by Groves and Couper; 2.4.1 Influences under Researchers' Control; 2.4.2 Influences out of Researchers' Control; 2.4.3 Householder-Interviewer Interaction; 2.5 Theories on Nonresponse; 2.5.1 Opportunity Cost Hypothesis; 2.5.2 Leverage-Saliency Theory; 2.5.3 Social Exchange Theory; 2.5.4 Social Isolation Hypothesis; 2.6 Summary; 3 Sample Persons' Personality and Survey Refusals; 3.1 The Big 5 Personality Traits 3.2 The Explanatory Power of Personality Traits in the Social Sciences3.3 A Modification of the Social Isolation Hypothesis; 3.4 The Impact of Personality Traits on Loneliness; 3.5 Explanations in the Social Sciences; 3.6 The Macro-Micro-Macro Model; 3.7 The Impact of Loneliness on Survey Participation; 3.8 The Impact of Personality Traits on Survey Participation; 3.9 Summary; 4 Personality Effects on Participation in the GGSS (ALLBUS); 4.1 The German General Social Survey in 2004, 2006 and 2008; 4.2 The Willingness to Participate: Assessment by Interviewers 4.3 The Willingness to Participate: Temporary Refusals4.4 Independent Variables; 4.4.1 Respondents' Personality Traits; 4.4.2 Respondents' Socio-Demographic Characteristics; 4.4.3 Interviewers' Characteristics; 4.5 Statistical Approach; 4.6 Descriptive and Bivariate Relationships; 4.7 Analysis of Participation Willingness Indicated by Interviewers' Assessments; 4.7.1 Model Building; 4.7.2 Results; 4.7.3 Interpretation of the Model Fit; 4.8 Analysis of Participation Willingness Indicated by Temporary Refusals; 4.8.1 Model Building; 4.8.2 Interpretation of Results; 4.9 Summary 5 Personality Effects on Participation in the LISS Panel5.1 The Longitudinal Internet Studies for the Social Sciences Panel; 5.2 Panel Duration and Panel Drop-Outs; 5.3 Independent/Exogenous Variables; 5.3.1 Panel Members' Personality Characteristics; 5.3.2 Panel Members' Socio-Demographic Characteristics; 5.4 Statistical Approach; 5.5 Descriptive, Bivariate and Preliminary Multivariate Analysis; 5.5.1 Relationship between Participation, Personality Traits and Loneliness; 5.5.2 Stability of Personality Traits; 5.5.3 Bivariate Relationships between Indicators of Loneliness 5.6 Survival Analysis | 
