William Martin Van der Veld

Radboud University | RU · Behavioural Science Institute

Assessing the correctness of a structural equation model is essential to avoid drawing incorrect conclusions from empirical research. In the past, the chi-square test was recommended for assessing the correctness of the model but this test has been criticized because of its sensitivity to sample size. As a reaction, an abundance of fit indexes have...

The Dimensional Obsessive-Compulsive Scale (DOCS) is a self-report questionnaire aimed to measure the severity of obsessive-compulsive symptoms on four thematically different symptom dimensions (contamination, responsibility for harm, unacceptable thoughts, and symmetry and completeness). The DOCS was developed in the US in response to the insuffic...

This study investigates the relationship between personality and psychopathology as measured by the NEO Personality Inventory (Costa & McCrae, 1992) and the Minnesota Multhiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Ben-Porath & Tellegen, 2008) in a combined dataset of patients with a broad range of psychiatric disorders (N = 472)...

Impaired executive functions (EF) have been found within various mental disorders (e.g., attention deficit hyperactivity disorder, autism spectrum disorder, schizophrenia spectrum disorders) as described in DSM-5. However, although impaired EF has been observed within several categories of mental disorders, empirical research on direct relations be...

This a a validated BDI-II in Indonesian version.

This paper provides a detailed account of the development of an instrument to investigate the emerging concept of presence in teaching (PiT) on a larger scale, explaining how the transition from data and findings from qualitative studies to a survey instrument was accomplished. In order to ensure relevance for teachers, the instrument needed to do...

Although social support and mental health associations have been extensively investigated, their reciprocal relations in vulnerable youth remain understudied. This study investigated the relations between perceived social support and symptom distress over time whilst differentiating between support from caregivers and significant others. The sample...

Family accommodation in obsessive compulsive disorder (OCD) consists of participation in symptoms and modification of family routines in order to reduce patients' anxiety and impairment, manage relatives’ own distress, and maintain family functioning. Higher levels of accommodation are associated with increased symptom severity and worse treatment...

(Published in "Orthopedagogiek: Onderzoek en Praktijk"). School-Wide Positive Behavior Support (SWPBS) is een schoolbrede aanpak die zich richt op het creëren van een veilige leeromgeving. Onderzoek toont aan dat door een betrouwbare invoering van SWPBS gedragsproblemen afnemen en het schoolklimaat verbetert. Buitenlands onderzoek naar de effecten...

In 2009, School‐Wide Positive Behavioral Interventions and Supports (SWPBIS) was introduced in the Netherlands to support schools in creating safe learning environments. In this longitudinal study, we explored effects of SWPBIS on student outcomes in the Netherlands. Fidelity of implementation of SWPBIS has been associated with improved student out...

KBG syndrome is a neurodevelopmental disorder, caused by dominant mutations in ANKRD11, that is characterized by developmental delay/intellectual disability, mild craniofacial dysmorphisms, and short stature. Behavior and cognition have hardly been studied, but anecdotal evidence suggests higher frequencies of ADHD‐symptoms and social‐emotional imp...

Background Kabuki syndrome (KS) is a Mendelian disorder, characterised by short stature, facial dysmorphisms and developmental delay and/or intellectual disability. Clarification of the neurocognitive profile in KS may provide directions for education and treatment interventions for KS. Previous studies on cognitive functioning in KS are scarce and...

The distinction between mental health and mental illness has long been the subject of debate, especially in the last decade where there has been a shift in focus in mental health care from symptom reduction to the improvement of positive mental health. Art therapists have been influenced by this shift. In this study, we investigated: (1) whether ar...

Multidisciplinary treatment programs for patients with personality disorders (PDs) often include art therapy, but the efficacy of this intervention has hardly been evaluated. The objective of this study is to evaluate the effects of an art therapy intervention on psychological functioning of patients with a PD. In this randomized controlled trial,...

2017): Evaluating WAIS-IV structure through a different psychometric lens: structural causal model discovery as an alternative to confirmatory factor analysis, The Clinical Neuropsychologist,

2017): Evaluating WAIS-IV structure through a different psychometric lens: structural causal model discovery as an alternative to confirmatory factor analysis, The Clinical Neuropsychologist,

Despite the use of art therapy in clinical practice, its appreciation and reported beneficial results, no instruments are available to measure specific effects of art therapy among patients with personality disorders cluster B/C in multidisciplinary treatment. In the present study, we described the development and psychometric evaluation of the Sel...

Objective: Since the publication of the WAIS-IV in the U.S. in 2008, efforts have been made to explore the structural validity by applying factor analysis to various samples. This study aims to achieve a more fine-grained understanding of the structure of the Dutch language version of the WAIS-IV (WAIS-IV-NL) by applying an alternative analysis ba...

Purpose: In order to understand the multidimensional mechanism of fear of cancer recurrence (FCR) and to identify potential targets for interventions, it is important to empirically test the theoretical model of FCR. This study aims at assessing the validity of Lee-Jones et al.'s FCR model. Methods: A total of 1205 breast cancer survivors were i...

Aims: To prospectively identify the course of severe fatigue, its predictors and the relationship with HbA1c in patients with type 1 diabetes. Methods: 214 adult patients completed questionnaires on fatigue severity and fatigue-related factors at baseline. HbA1c was retrieved from medical records. After 43months, fatigue severity and HbA1c were...

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Key practitioner message: Incidence of mental disorders in young women was predicted by neuroticism and low global functioning. There seems to be a need for preventive interventions addressing high neuroticism and low global functioning. Remission in young women was predicted by positive mental health. It may be helpful to include resource-based i...

Many researchers analyse data in a stepwise manner. The in between steps may help the researcher to understand the data better. It does not answer the research question, that is normally accomplished with the final step. In between steps are usually of little relevance as the results of ’incomplete’ models should not be trusted. In regression one c...

The self-determination theory emphasizes the importance of satisfaction with autonomy, competence, and relatedness for a person’s psychological growth and well-being. This study examines associations between autonomy, competence, and relatedness with quality of life in homeless young adults; and whether possible associations are mediated by psychol...

Early detection of reading problems is important to prevent an enduring lag in reading skills. We studied the relationship between speed of word recognition (after six months of grade 1 education) and four kindergarten pre-literacy skills: letter knowledge, phonological awareness and naming speed for both digits and letters. Our sample consisted of...

Background In recent years, it has been increasingly recognized that the absence of mental disorder is not the same as the presence of positive mental health (PMH). With the PMH-scale we propose a short, unidimensional scale for the assessment of positive mental health. The scale consists of 9 Likert-type items. Methods The psychometric properties...

Objective To test the effectiveness of Houvast: a strengths-based intervention for homeless young adults. Method A cluster randomized controlled trial was conducted with 10 Dutch shelter facilities randomly allocated to an intervention and a control group. Homeless young adults were interviewed when entering the facility and when care ended. Repea...

Self-control cognitions arise right before or after someone gives in to an unwanted habit. This paper reports on the development of the 11-item Self-Control Cognition Questionnaire (SCCQ) in a series of three studies. In the first study (N = 308), we found that the SCCQ has a two-factor structure and is reliable. The factors were named ''Giving way...

Om kinderen zo goed mogelijk tijdens hun leesontwikkeling te begeleiden, is het niet alleen belangrijk om ze al in groep 1-2 voor te bereiden op het leesonderwijs, maar ook om tijdig leesproblemen te signaleren. De auteurs van dit artikel raden aan om dit al in de kleutergroep te doen. De mogelijkheden zijn er. Door enerzijds te observeren en ander...

The Cattell-Horn-Carroll (CHC) theory of cognitive abilities has been guiding in the revision of the Wechsler Adult Intelligence Scale-Fourth edition (WAIS-IV). Especially the measurement of fluid reasoning (Gf) is improved. A total of five CHC abilities are included in the WAIS-IV subtests. Using confirmatory factor analysis, a five-factor model b...

Fluid intelligence (Gf) has been related to executive functioning (EF) in previous studies, and it is also known to be correlated with crystallized intelligence (Gc). The present study includes representative measures of Gf, Gc, and EF frequently used in clinical practice to examine this Gf-EF relation. It is hypothesised that the Gf-EF relation is...

The reliability and validity of three short forms of the Dutch version of the Wechsler Memory Scale-Fourth Edition (WMS-IV-NL) were evaluated in a mixed clinical sample of 235 patients. The short forms were based on the WMS-IV Flexible Approach, that is, a 3-subtest combination (Older Adult Battery for Adults) and two 2-subtest combinations (Logica...

Este estudio evalúa la validez y determina los puntos de corte del Inventario de Depresión de Beck -II (BDI-II) en Indonesia. La versión indonesia del BDI-II (BDI-II Indo) se administró a 720 personas sanas de la población general, a 215 pacientes con Enfermedad Coronaria (EC) y a 102 pacientes con depresión. El análisis factorial confirmatorio mos...

This study investigates the relationship between the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) and the Temperament and Character Inventory (TCI) in a combined data set (N = 491) of patients with a broad range of psychiatric disorders (n = 286) as well as alcohol use disorder (n = 205). We examined bivariate correla...

In this contribution we start from the emerging consensus on the widely disputed phenomenon of social capital. We propose to focus on structural aspects of social capital: formal (contacts within formal organizations) and informal (contacts outside of formal organizations). First, we address methodological questions on the cross-national equivalenc...

In this study we describe differences of the ethnic majorities’ attitudes toward Muslims across Western countries. Using data from the Pew Global Attitudes Survey (2005), we were able to increase and test cross-cultural comparability of anti-Muslim attitudes. We constructed a single factor CFA model with three indicators, which was tested for scala...

In the present study we examined the effect of hearing status on reading vocabulary development. More specifically, we examined the change of lexical competence in children with hearing loss over grade 4-7 and the predictors of this change. Therefore, we used a multi-factor longitudinal design with multiple outcomes, measuring the reading vocabular...

Introduction For decades, the fundamental ability known as intelligence, has been interpreted as a unitary concept: g. The distinction between crystallized intelligence (Gc) and fluid intelligence (Gf), introduced by Horn and Catell in 1966, is corroborated by recent neuropsychological research. Since Gf is sensitive to frontal lobe lesions, studie...

Remoralization as an outcome measure for psychological treatments was compared with symptom reduction (agoraphobic avoidance and cognitions). Twenty-four patients with panic disorder and agoraphobia received empirically supported treatment and were monitored across multiple time points for 28 weeks. Treatment resulted in reduced symptoms and enhanc...

The psychometric properties of the shortened version of the Sibling Relationship Questionnaire (SRQ; Furman & Buhrmester, 1985) were examined in a sample of 428 Dutch adolescents, aged 13 to 16. In order to examine the dimensions Warmth/Closeness and Conflict, as proposed by Furman and Buhrmester, we first conducted confirmatory factor analyses. Se...

Remoralization is the process of restoration of morale. Remoralization constitutes an important step in the therapeutic change process. Because no appropriate self-report instrument was available to indicate the level of morale in mental health care, the Remoralization Scale (RS) was developed. In a first study (299 outpatients), a pool of 69 items...

Due to globalisation and immigration, the ethnic diversity of European countries increases. Issues of multiculturalism and migration policies are high on the political agenda, fuelled by negative immigrant stances among the general public. In this presentation we focus on the public opinion regarding immigrants and ethnic minorities in European cou...

Generalized social trust is an important variable in many science fields. Recently many publi-cations, often discussing the issue of social capital from a cross-national comparative perspec-tive, have appeared in the literature. In these publications it is often assumed that measures of generalized social trust are comparable across countries. That...

Measurement equivalence is a necessary condition for meaningful cross-national comparisons. A precondition for equivalence is a correct translation of a ‘mother’ question in all other languages. No matter how good this translation is, i.e. without errors, one still cannot guarantee that the question is understood in the same way across all countrie...

A recent study has presented evidence of relationships between beliefs about online romance and Internet related variables like Internet usage and affinity with the Internet (Anderson, 2005). The results are consistent with previous research, and therefore strengthen the validity of the conclusions. However, a swift re-analysis of the data showed v...

Proefschrift Universiteit van Amsterdam. Met lit. opg. - Met samenvatting in het Nederlands.

In the past, survey researchers assumed that the respondents held opinions which could be obtained by asking the proper questions. This idea - the "file drawing model" for survey response - was criticized strongly by Converse in 1964, but also strongly defended by Achen (1975), Erikson (1978, 1979), and Judd et al. (1981). Zaller (1992) introduced...

This study is about the assessment of reliability of single survey measures. Reliability of single survey measures can only be assessed with several designs. We will discuss two of the most common designs: the quasi-simplex design (panel) and the parallel test design (cross section). The quasi-simplex design should have been the solution for the as...

In this chapter we first introduce the MTMM (multitrait multimethod) approach and the results of the meta-analysis. We then show how these results can be used to predict the quality of survey items before data are collected. We conclude by discussing the possibilities and limitations of this approach and its future development.

When designing questionnaires many choices have to be made. Because the consequences of these choices for the quality of the questions are largely unknown, it has often been said that designing a questionnaire is an art. To make it a more scientific activity we need to know more about the consequences of these choices. It would be better still if a...

In the past, several models have been developed for the estimation of the reliability and validity of measurement instruments from multitrait-multimethod (MTMM) experiments. Suggestions have been made for additive, multiplicative and correlated uniqueness models, whereas recently Coenders and Saris (2000) suggested a procedure to test these models...

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Many researchers, beginning with Campbell and Fiske (1959), Andrews (1984), and Saris and Andrews (1991), have suggested to use the multitrait multimethod approach to estimate the quality of measurement instruments. This approach has also been used in Russia, building on the experience of Andrews (1984) in the USA, Költringer (1995) in Austria, and...