Publicaties
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Can immersive virtual reality increase respondents’ certainty in discrete choice experiments? A comparison with traditional presentation formats Universiteit Hasselt
Stated preference methods such as discrete choice experiments (DCEs) are used to elicit respondents' preferences and willingness to pay (WTP) for environmental goods or services whose value cannot be observed in actual markets. However, DCEs may deliver biased estimates because of respondents' unfamiliarity with the hypothetical scenarios to be valued. There is evidence that visualization techniques can enhance respondents' cognitive ability and ...
The impact of respondents and interviewers on interview speed in face-to-face interviews KU Leuven
In surveys carried out by interviewers trained according to the key principle of standardized interviewing it is assumed that the interviewer has only limited impact on the time a respondent needs to answer questions. In the paper the effects of interviewers and respondent characteristics on interview speed are analyzed simultaneously by means of a three-level random coefficient model. Data from the fifth round of the European Social Survey ...
The interviewer in the respondent’s shoes: What can we learn from the way interviewers answer survey questions? KU Leuven
Previous research shows that interviewers to some extent fail to expend the effort that is needed to collect high-quality survey data. We extend the idea of interviewer satisficing to a related task, in which the interviewers themselves answer survey questions. We hypothesize that interviewers who self-administer the questionnaire in a careless manner, also will not apply themselves fully to the task of administering survey interviews. Based on ...
Factors Associated With Use of Psychiatrists and Nonpsychiatrist Providers by ESEMeD Respondents in Six European Countries KU Leuven
OBJECTIVE: This study analyzed use of services from psychiatrists and other mental health professionals (psychologists, psychotherapists, counselors, and social workers) in six European countries. METHODS: Data were from respondents (N=8,796) to the European Study of the Epidemiology of Mental Disorders (ESEMeD), a cross-sectional survey (2001-2003) of a representative sample of noninstitutionalized adults in Belgium, France, Germany, Italy, the ...
Comorbidity within mental disorders: a comprehensive analysis based on 145 990 survey respondents from 27 countries KU Leuven
AIMS: Epidemiological studies indicate that individuals with one type of mental disorder have an increased risk of subsequently developing other types of mental disorders. This study aimed to undertake a comprehensive analysis of pair-wise lifetime comorbidity across a range of common mental disorders based on a diverse range of population-based surveys. METHODS: The WHO World Mental Health (WMH) surveys assessed 145 990 adult respondents from ...
The effect of sociodemographic (mis)match between interviewers and respondents on unit and item nonresponse in Belgium KU Leuven Universiteit Antwerpen
Interviewer characteristics affect nonresponse and measurement errors in face-to-face surveys. Some studies have shown that mismatched sociodemographic characteristics – for example gender – affect people’s behaviour when interacting with an interviewer at the door and during the survey interview, resulting in more nonresponse. We investigate the effect of sociodemographic (mis)matching on nonresponse in two successive rounds of the European ...
Variation in landscape perception and preference: experiences from case studies in rural and urban landscapes observed by different groups of respondents Universiteit Gent
Landscape is like air: it is everywhere, yet we are not always conscious of it. Landscape is an abstract concept. During the last decades, landscape research and policy have undergone considerable changes in focus and content and methodology, and so have the meanings appended to landscape. (Inter-)national policy tends to emphasize the importance of landscape perception by the public. Furthermore, landscape is not confined to the sublime ...
The influence of ergodicity on risk affinity of timed and non-timed respondents Vrije Universiteit Brussel
Expected values are the metric most often used to judge human decision-making; when humans make decisions that do not optimize expected values, these decisions are considered irrational. However, while convenient, expected values do not necessarily describe the evolution of an individual after making a series of decisions. This dichotomy lies at the core of ergodicity breaking, where the expected value (ensemble average) differs from the ...