Dataset Information

Introducing a vignette experiment to study mechanisms of ethnic discrimination on the housing market.

ABSTRACT: Ethnic discrimination on the housing market has been subject of research for years. While a field experimental approach is widespread, alternative attempts to objectively measure mechanisms of discrimination on the housing market are scarce. In line with labor market research, we stress that to reduce rental discrimination against ethnic minorities, we need understanding its underlying mechanisms. This is the first paper that introduces a vignette experiment to do so. We distinguish between four mechanisms put forward in the literature but hardly ever empirically tested: agent taste-based discrimination, owner taste-based discrimination, neighborhood taste-based discrimination and statistical discrimination, in a multifactorial vignette experiment among 576 pre graduate real estate student. In addition, our experimental design allows us to examine whether unequal treatment is heterogeneous by property owner and neighborhood characteristics.

SUBMITTER: Ghekiere A

PROVIDER: S-EPMC9612456 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Introducing a vignette experiment to study mechanisms of ethnic discrimination on the housing market.

Ghekiere Abel A Verhaeghe Pieter-Paul PP Baert Stijn S Derous Eva E Schelfhout Stijn S

PloS one 20221027 10

Ethnic discrimination on the housing market has been subject of research for years. While a field experimental approach is widespread, alternative attempts to objectively measure mechanisms of discrimination on the housing market are scarce. In line with labor market research, we stress that to reduce rental discrimination against ethnic minorities, we need understanding its underlying mechanisms. This is the first paper that introduces a vignette experiment to do so. We distinguish between four ...[more]

PMID: 36301902

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Project description:BackgroundQuestionnaires are used routinely in clinical research to measure health status and quality of life. Questionnaire measurements are traditionally formally assessed by indices of reliability (the degree of measurement error) and validity (the extent to which the questionnaire measures what it is supposed to measure). Neither of these indices assesses the degree to which the questionnaire is able to discriminate between individuals, an important aspect of measurement. This paper introduces and extends an existing index of a questionnaire's ability to distinguish between individuals, that is, the questionnaire's discrimination.MethodsFerguson (1949) 1 derived an index of test discrimination, coefficient delta, for psychometric tests with dichotomous (correct/incorrect) items. In this paper a general form of the formula, deltaG, is derived for the more general class of questionnaires allowing for several response choices. The calculation and characteristics of deltaG are then demonstrated using questionnaire data (GHQ-12) from 2003-2004 British Household Panel Survey (N = 14761). Coefficients for reliability (alpha) and discrimination (deltaG) are computed for two commonly-used GHQ-12 coding methods: dichotomous coding and four-point Likert-type coding.ResultsBoth scoring methods were reliable (alpha > 0.88). However, deltaG was substantially lower (0.73) for the dichotomous coding of the GHQ-12 than for the Likert-type method (deltaG = 0.96), indicating that the dichotomous coding, although reliable, failed to discriminate between individuals.ConclusionCoefficient deltaG was shown to have decisive utility in distinguishing between the cross-sectional discrimination of two equally reliable scoring methods. Ferguson's delta has been neglected in discussions of questionnaire design and performance, perhaps because it has not been implemented in software and was restricted to questionnaires with dichotomous items, which are rare in health care research. It is suggested that the more general formula introduced here is reported as deltaG, to avoid the implication that items are dichotomously coded.

Dataset Information

Introducing a vignette experiment to study mechanisms of ethnic discrimination on the housing market.

Publications

Introducing a vignette experiment to study mechanisms of ethnic discrimination on the housing market.

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