Justification of functional form assumptions in structural models: applications and testing of qualitative measurement axioms

In both theoretical and applied modeling in behavioral sciences, it is common to choose a mathematical specification of functional form and distribution of unobservables on grounds of analytic convenience without support from explicit theoretical postulates. This article discusses the issue of deriving particular qualitative hypotheses about functional form restrictions in structural models from intuitive theoretical axioms. In particular, we focus on a family of postulates known as dimensional invariance. Subsequently, we discuss how specific qualitative postulates can be reformulated so as to allow for conventional statistical hypothesis testing, and we also derive details of a particular likelihood ratio test procedure. An empirical application of the testing procedure is carried out, based on data from a Stated Preference survey.     

Explanatory models for disability: perspectives of health providers working in Malawi

Health providers’ understanding of disability determines how disabled people are treated, and hence it is imperative to address conceptualisations of disability, as this will contribute to better opportunities and realisation of human rights for disabled people. This article will use data from a qualitative study exploring conceptualisations of disability by 22 health service providers from the total health care system in Malawi, including the professional sector (e.g. medical doctors and nurses) and the folk sector (healers and indigenous practices). We will discuss how these perceptions influence the lives of disabled people, using the case of a health service user with physical and speech impairment as an example. Our data show that health providers largely conceptualise disability according to the medical model for disability, contributing to the exclusion of disabled people. The bio-psycho-social model for disability, largely absent as an explanatory model for disability among our informants, is the most inclusive and rights based.     

Automated decision-making: Toward a people-centred approach

Recently, automated decision-making (ADM) has been increasingly introduced in for example, the public sector potentially ensuring efficiency and more just decision-making. The increasing use of ADM has been reflected by a growing interest by scholarly research. While initially mainly researchers within law and computer sciences engaged with ADM, there has also been a growing engagement by social science and humanities-oriented researchers. This article traces the emergence and evolution of ADM research beyond computer sciences and engineering with a specific focus on social sciences and humanities by identifying central concerns and methods while outlining a stable baseline for future research. Based on a systematic mapping of publications, we outline the contours of ADM as an area of research engaging with an emerging empirical phenomenon. Drawing on findings from the mapping, we discuss ways ahead for ADM research as part of the subfield of digital sociology and suggest that sociological media and communication studies have a crucial role to play in developing future research avenues. Drawing on advances made in audience research, we suggest a radically contextualized and people-centered approach to ADM. Such an approach would help to develop ADM and ground it alongside people's divergent capabilities and contextual arrangements.     

Explaining Normal Quantile-Quantile Plots Through Animation: The Water-Filling Analogy

A normal quantile-quantile (QQ) plot is an important diagnostic for checking the assumption of normality. Though useful, these plots confuse students in my introductory statistics classes. A water-filling analogy, however, intuitively conveys the underlying concept. This analogy characterizes a QQ plot as a parametric plot of the water levels in two gradually filling vases. Each vase takes its shape from a probability distribution or sample. If the vases share a common shape, then the water levels match throughout the filling, and the QQ plot traces a diagonal line. An R package qqvases provides an interactive animation of this process and is suitable for classroom use.     

‘Can anything good come out of this mouth?’ Female experiences of disability in Malawi

The aim of this article is to give an overview of the daily life stories of 23 women with disabilities in Malawi. The stories were gained through qualitative interviews that covered aspects of being a woman and living with a disability in Malawi. Recent studies from countries in southern Africa have documented how people with disabilities experience poorer living conditions than people without disabilities. It is generally assumed that the living conditions of women are worse than those of men. There is, however, a large gap in the literature concerning women with disabilities in Africa. The results present a mixed picture. While several of the informants had experienced discrimination and exclusion because of their impairments, most of the women had been well taken care of and were treated equally by their closest family and friends. They had a strong wish to be empowered through education and employment.     

Sleep among youths in foster care: Associations with potentially traumatic events,PTSD and mental health

Among maltreated youth in foster care, little is known about frequency of sleep problems and its association to potential traumatic events (PTEs) and mental health. Among youths in foster care, we examined: (1) sleep patterns, difficulties initiating and maintaining sleep (DIMS) and related functional impairment; (2) whether exposure to PTEs, symptoms of post‐traumatic stress disorder (PTSD) and general mental health problems are associated with DIMS and related functional impairment, controlling for age, gender and time in foster care; and (3) whether PTSD and general mental health problems mediate the association between PTEs and DIMS. Foster youths in Norway (n = 299) completed a survey on sleep behaviour, the Child and Adolescent Trauma Screen, and the Strengths and Difficulties Questionnaire. Overall, 53.2% reported DIMS. For 82.1%, these sleep problems had lasted 3 months plus. Increased PTEs, PTSD and general mental health problems were all associated with increased DIMS score. Increased rate of PTEs was associated with decreased sleep duration. PTSD and general mental health problems partially mediated the association between PTEs and DIMS. Youth in foster care are at high risk of sleep problems, related to traumatic experiences and mental health problems. Treatment of PTSD may improve sleep problems among maltreated youth.