The prevalence of major depressive disorder (MDD) is growing worldwide, and experiencing violent victimization, especially during childhood, worsens its symptoms and raises the likelihood of being...Show moreThe prevalence of major depressive disorder (MDD) is growing worldwide, and experiencing violent victimization, especially during childhood, worsens its symptoms and raises the likelihood of being victimized again. This study assessed the impact of different forms of child abuse (physical, emotional, sexual) on depressive symptoms in patients with MDD and a recent history of victimization, and whether gender moderates this relationship. Additionally, it investigates whether Internet Emotion Regulation Training (iERT) as an addition to Treatment as Usual (TAU) can reduce emotion regulation difficulties and depressive symptoms in the same population. 153 patients filled in questionnaires and the hypotheses were tested by a hierarchical regression analysis and two repeated measure ANOVAs. Regarding the first research question, a significant association was found between depression and physical- and emotional child abuse, but not sexual abuse. This effect was not moderated by gender. Regarding the second research question, no significant effect was found of adding iERT to TAU on either emotion regulation difficulties or depressive symptoms.Show less
Sensitive parenting is important for promoting the parent-child relationship and children’s emotional, cognitive, and social development. Parental factors related to sensitive parenting are...Show moreSensitive parenting is important for promoting the parent-child relationship and children’s emotional, cognitive, and social development. Parental factors related to sensitive parenting are depression and parental self-efficacy. The aim of this study was to explore the relationship between depression and sensitive parenting, and whether parental self-efficacy mediates this association. Participants were 17 Dutch mothers and 4 Dutch fathers of children aged 3-5 years. Parents played 5-10 minutes with their child during two measurement moments, while the researcher was present through a Microsoft Teams connection. A video of the playing was recorded. In between the two measurement moments, parents completed the Center for Epidemiologic Studies Depression-questionnaire (CES-D) and the Me as a Parent-questionnaire (MaaP). Afterwards, the video recordings were encoded according to the Ainsworth sensitivity scale. Only the relation between depression and sensitivity was significant, where depression was positively related to sensitivity. There was no indication found for a mediational role of parental self-efficacy in the relation between depression and sensitivity. Explanatory theories, limitations and practical implications were discussed. Future research will have to show which other factors can explain these unexpected findings.Show less
In this thesis research has been conducted regarding the following question: is it possible to translate the long Qur’anic surah sūrat al-Raḥmān into Dutch, whereby the following three criteria are...Show moreIn this thesis research has been conducted regarding the following question: is it possible to translate the long Qur’anic surah sūrat al-Raḥmān into Dutch, whereby the following three criteria are met: 1. the meaning is preserved 2. the oral and aural aspect is conveyed 3. the translation is presented in natural and accessible Dutch. To meet the criterion of aurality and orality the translation must meet the testible criteria of rhyme, metre, parallelism, lexical echoes, conciseness, the relation between the sound of words and the atmosphere of a verse or surah, and repetition, which are the most important linguistic structures underlying orality and aurality. Recognizability for Muslims is part of the criterion of meaning. A translation method according to these criteria has been used in the testcase and the translation process has been described. The above resulted in a translation that met the criteria of the research question.Show less
Previous research has argued the importance of education for future gains (Palomino et al., 2019) and how inequality can negatively affect educational aspirations (Jia et al., 2021). Therefore,...Show morePrevious research has argued the importance of education for future gains (Palomino et al., 2019) and how inequality can negatively affect educational aspirations (Jia et al., 2021). Therefore, this study aimed to further demonstrate whether differences in perceptions of inequality of opportunity and outcome negatively affects students’ educational aspirations. Further, based on previous research demonstrating positive main effect of internal locus of control (Sagone & Caroli, 2014) and a moderating effect of internal locus of control (Jia et al., 2021) on educational outcomes, locus of control was added as a moderator to see if an internal locus of control offsets negative effects of inequality on educational aspirations. Our manipulation, videos explaining inequality of opportunity and outcome, failed to tease apart perceptions of inequality of opportunity and outcome and were consequently combined into one factor, inequality. We found no significant main effect of perception of inequality, but a significant positive main effect of locus of control on educational aspirations. An interaction effect between perceptions of inequality and locus of control on educational aspirations was found. However, unexpectedly, students perceiving inequality within the external locus of control group scored highest on educational aspirations. Implications, limitations, and avenues for further research are discussed.Show less
Seeking to more profoundly understand the nexus between race and class in Brazil, and comprehend its implications for political consciousness, this thesis centres the question: “How is political...Show moreSeeking to more profoundly understand the nexus between race and class in Brazil, and comprehend its implications for political consciousness, this thesis centres the question: “How is political consciousness of Afro-Brazilian emancipation movements informed by class interests?” In this capacity, class interests are interpreted as racialised consciousness, derived from the neo- Marxist theory of racialisation, a lens that figures prominently in this study. Remaining open to alternative explanations, through exploring discourse of Afro-Brazilian movement Black Coalition for Rights, this study concludes that two forms of consciousness theoretically assumed to be different are both built on similar premises that recognise the role of capitalist structures in processes of racialisation.Show less
About 40% of Dutch employees engage in physically demanding work (PDW). PDW involves tasks during work that require prolonged standing, heavy lifting, repetitive movements, and taxing postures....Show moreAbout 40% of Dutch employees engage in physically demanding work (PDW). PDW involves tasks during work that require prolonged standing, heavy lifting, repetitive movements, and taxing postures. Recent research shows that PDW deteriorates health, but mechanisms and buffers or boosters for this relation have remained unclear. In the present study, lower leisure-time physical activity (LTPA) and higher alcohol consumption are postulated as explanations and as moderators for the negative relation between PDW and health. Thus, this study investigates the relationship between PDW and health outcomes over one year, and further focusses on the potential mediating and moderating roles of the lifestyle behaviors, LTPA and alcohol consumption. The sample consisted of N = 1,259 Dutch employees and data was used from a longitudinal study (LISS-panel) conducted over two waves with a one-year interval (2021-2022). Using self-reported questionnaires, the participants reported about their health status (at both baseline and after one year), physical work demands, alcohol consumption and participation in LTPA. The statistical analysis involved a regression analysis (main effect), and the PROCESS Macro by Hayes model 1 (moderation) and 4 (mediation). There was controlled for gender, age, education level and health at baseline. The analyses showed that first, in line with the literature, PDW negatively affects health. Second, neither LTPA nor alcohol consumption significantly mediates or moderates the negative relationship between PDW and health outcome. These results suggest that the impact of PDW cannot be explained by the lifestyle factors studied. Also, the findings point at a need for investigating other mechanisms in the relation between PDW and health, such as other lifestyle behaviors or implementing tools to make jobs itself less physically demanding. We also recommend future research to follow up on these findings with objective measurements of health and physical activity (instead of self-reporting questionnaires), longer study periods, and the use of multiple item questions to fully understand the long-term health implications of PDW and lifestyle behavior.Show less
Children with sex chromosome trisomy (SCT) are at increased risk for psychopathology, particularly within the social domain. This study investigates whether children with SCT exhibit elevated...Show moreChildren with sex chromosome trisomy (SCT) are at increased risk for psychopathology, particularly within the social domain. This study investigates whether children with SCT exhibit elevated autism traits compared to typically developing children, given the difficulties in social interaction and communication that are typical of autism spectrum disorders. The sample comprised 67 children with SCT (27 girls with XXX, 29 boys with XXY, 11 boys with XYY) and 70 typically developing children, aged 2.5 to 7.5 years. Autism traits were assessed using the Social Responsiveness Scale, Second edition (SRS-2). Statistical analyses revealed that children with SCT demonstrate more severe deficits in social responsiveness than typically developing children, scoring primarily in the subclinical range. Children with SCT scored significantly higher on all assessed autism aspects, with social awareness being the least affected compared to the control group. No differences were found across different karyotypes, suggesting a consistent elevation of autism traits across SCT genetic variants. Age had no effect on the severity of autism traits, implying stability across development. These insights enhance understanding of the specific needs and challenges of children with SCT in their social development, which is crucial for the development of effective support and intervention programs. Additionally, these findings underscore the importance of early detection and intervention for children with SCT, with autism traits serving as potential early indicators of SCT presence.Show less
Objectives: Free-play and social interactions during school recess are crucial for children's development. This study explored the social preferences of autistic and non-autistic children during...Show moreObjectives: Free-play and social interactions during school recess are crucial for children's development. This study explored the social preferences of autistic and non-autistic children during recess, and their impact on children’s recess enjoyment. Based on prior research, the study hypothesized that (1) both autistic and non-autistic children would interact more with in-group peers, and (2) more in-group interactions would contribute to higher recess enjoyment. Methods: Measurements were conducted on 69 children with special educational needs (19 autistic, 50 non-autistic) aged 4-14 years at a special educational primary school in the Netherlands. Radio frequency identification (RFID) proximity sensors tracked children’s number of interaction partners and total interaction time during recess. Recess enjoyment was assessed using six items from the Lunchtime Enjoyment of Activity and Play (LEAP) self-report questionnaire, completed on tablets with assistance. Interaction measures were adjusted for different group sizes and recess duration. Results: Mixed ANOVAs and post hoc tests showed that non-autistic children had significantly more non-autistic interaction partners than autistic partners (t(49) = 8,88, p < .001), whereas autistic children had a similar number of autistic and non-autistic partners (t(18) = .961, p = .175). No significant difference were found in the time spent interacting with autistic and non-autistic peers for either group (F(1, 66) = 1.09; p = .300; partial η² = .016). Regression models showed no significant relationship between in-group interactions and recess enjoyment (b = .40, t(48) = .13, p = .897 for time spent in interaction; b = 1.87, t(48) = .77, p = .443 for number of interaction partners). Conclusion: The study partially replicated previous findings of in-group social preferences among non-autistic children but found no such preference among autistic children during recess. The results highlight the differences in social patterns alongside similarities in the time spent in close interactions and enjoyment of recess in both groups. The findings have implications for professionals in designing and managing school environments that respect diverse social preferences while handling social exclusions. Limitations, future directions, and theoretical implications supporting the social model of autism are discussed.Show less
Adverse Childhood Experiences (ACE), such as abuse, neglect, and household dysfunction have consistently been associated with the development of dysfunctional thinking patterns, known as Early...Show moreAdverse Childhood Experiences (ACE), such as abuse, neglect, and household dysfunction have consistently been associated with the development of dysfunctional thinking patterns, known as Early Maladaptive Schemas (EMS). This study aimed to investigate the relationship between ACE and the EMS Impaired Limits domain, while exploring the potential moderating role of sex assigned at birth in this relationship. We expected that more adverse experiences would predict more severe difficulties in controlling impulses and following rules and that sex assigned at birth would moderate this relationship. A cross-sectional design with convenience sampling was implemented, and self-report online questionnaires were completed by 131 Leiden University students, who volunteered to participate in the study. The Adverse Childhood Experiences Questionnaire (ACE-Q) and the Young Schema Questionnaire-Short Form; version 3 (YSQ-S3) were used to measure ACE and the EMS Impaired Limits domain respectively. Demographic information was collected, regarding participants’ sex assigned at birth, gender identity, country of origin, years lived in the Netherlands and cumulative GPA. The final sample consisted of 125 participants, out of which 114 were female (91.2%) and 11 (8.8%) were male. The average age of the participants was 19 years. To examine the relationship between ACE and the EMS Impaired Limits domain, linear regression analysis was conducted. The findings revealed that ACE score significantly predicted participants’ scores in the EMS Impaired Limits domain, (β = 1.66, p < .001, 95% CI [20.63, 24.02]), explaining 10.5% of the variance (R2 = 0.105). Moderation analysis to explore the role of sex assigned at birth did not yield reliable results, due to the disproportionate representation of male participants in the sample. The findings underscore the importance of ACE in understanding the development of the EMS Impaired Limits domain, highlighting the need for early and tailored interventions for individuals with a history of ACE. Future studies could further investigate additional factors influencing the development of this EMS domain, including a nuanced exploration of both sex assigned at birth and gender identity, utilizing more balanced and representative samples.Show less
The reading skills of children in the Netherlands have been significantly declining since 2015. Reading skills are fundamental for successful participation in society. The reading enjoyment of...Show moreThe reading skills of children in the Netherlands have been significantly declining since 2015. Reading skills are fundamental for successful participation in society. The reading enjoyment of children is also declining and reading enjoyment is associated with reading skills. Research has shown that struggling readers need individualized intensive multicomponent reading interventions to improve their reading skills. The purpose of this study was to examine the effects of two online reading interventions on reading skills and reading enjoyment of struggling readers in grades 4 and 5. The first reading intervention, the ‘Universele Interventie voor Lezen’ (UIL), is individualized and intensive and uses direct and explicit instruction. The second reading intervention, the ‘Meelees Interventie’ (MLI), is individualized, but less intensive and makes less use of direct and explicit instruction. Both interventions cover multiple components of reading. The interventions were compared to a wait-list control group (CG) in which children received the UIL at the end of the study. Reading skills were divided in word reading, reading fluency and reading comprehension and were measured using CBM word reading, CBM reading aloud, and CBM maze-selection. Reading enjoyment was measured using the Reading and Me Survey. Results revealed that struggling readers in the intervention conditions (UIL and MLI) made significantly greater pre-posttest gains in word reading than did struggling readers in the control group. No significant effects were found for reading fluency, reading comprehension or reading enjoyment. The results suggest that providing extra, intensive individualized multicomponent reading interventions to struggling 4th- and 5th-grade readers over a period of 4 weeks with 8 sessions may increase their word reading skills, but not their reading fluency skills, their reading comprehension skills or their reading enjoyment. In addition, the results suggest that interventions with more and less direct and explicit instruction were equally effective.Show less
Global temperatures are rising as policymakers aim to tackle the climate challenges our world faces today. The European Union plays a leading role in climate politics and the global reduction of...Show moreGlobal temperatures are rising as policymakers aim to tackle the climate challenges our world faces today. The European Union plays a leading role in climate politics and the global reduction of greenhouse gas emissions through one of its key tools, the Emissions Trading System. This thesis examines the impact of EU member states’ industrial composition on implementing the EU ETS in phase 2 through a comparative analysis of the Netherlands and Belgium. An examination of the correlation between national industries and the national implementation of the ETS has thus far remained absent in the existing literature and provides policy insights for future climate politics. An analysis of the relevant policy documents reveals how both countries varied in their implementation of the system. It demonstrates how the more pollutive industrial composition of the Netherlands caused the government to be more responsive to the affected industries’ interests in the allocation process. However, contrary to expectations, the Netherlands was not more lenient the monitoring of the system and was even more strict than Belgium in most areas.Show less
Dynamic testing (DT) is a method of testing that includes the provision of a form of feedback and guidance to the testing procedure, and can be used to examine children’s potential for learning in...Show moreDynamic testing (DT) is a method of testing that includes the provision of a form of feedback and guidance to the testing procedure, and can be used to examine children’s potential for learning in various cognitive functions, including working memory (WM). Furthermore, intrinsic motivation (IM) seems to be related to enhanced WM performance and learning, especially in feedback-contexts. However, research on the effectiveness of DT of WM in this age group, as well as the influence of IM, is lacking. Therefore, the current thesis aimed to study the effectiveness of our DT of WM, as well as the influence of IM. The study had a pretest-training-posttest design with two groups. The experimental group received training, whereas control group did not. The sample included 100 typically developing primary school children between 8 and 9 years old (Mage = 8.46, SD = 0.50, 51% girls). Contrary to previous findings, our results showed a decrease from pretest to posttest in WM performance in the control group and a slight increase in performance in the experimental group. Moreover, the children’s IM did not significantly influence the WM improvements when tested dynamically. The findings suggest that the training element in our DT could have protected against the decrease in WM from pretest to posttest and that IM did not have a significant influence on these results. These findings contribute to the field of research by highlighting the importance of factors such as sustained attention and time-on-task effects in the prevention of this decline in WM performance during DT. Besides these factors, future research should look into the effects of age, cognitive load and engagement on the DT of WM and IM to gain a better understanding on how to improve its effectiveness, especially in 8- to 9-year-old children. Further exploration could aid educational professionals in implementing the dynamic approach and supporting children’s learning processes and cognitive development.Show less
Objective Recent research has found conflicting interactions between health and different domains of physical activity (PA). Occupational physical activity (OPA) seems to negatively impact health,...Show moreObjective Recent research has found conflicting interactions between health and different domains of physical activity (PA). Occupational physical activity (OPA) seems to negatively impact health, whereas leisure-time physical activity (LTPA) positively impacts health, a phenomenon known as the physical activity paradox. What remains unclear is how these different domains of PA interact with each other and how their interaction influences health. Therefore, this study aims to investigate the main and interactive effects of OPA and LTPA on physical and mental health. A better understanding of these relations can contribute to more accurate PA advice, indirectly contributing to the closure of socioeconomic health inequalities. Based on previous studies, it was expected that higher OPA would relate to higher physical and mental health problems, while higher LTPA would relate to lower physical and mental health problems. Additionally, this study aimed to answer the research question whether LTPA functions as a buffer for the negative effects of high OPA on health or as an accelerator. Methods To investigate the hypotheses and research question, data from a longitudinal panel study were used. Two data measurement points were used with a one-year time lag. The sample was heterogeneous and consisted of Dutch employees working ≥ 24-hours a week (N = 1578). Results It was found that OPA and LTPA independently did not affect physical or mental health outcomes differently. Additionally, different combinations of OPA and LTPA did not lead to an increase or decrease in both physical mobility or mental health problems one year later. However, the results did show that individuals who had high levels of both OPA and LTPA had the highest chance on developing physical health problems one year later (b = 0.393, p = <0.001). Conclusion This study shows that OPA and LTPA may have different effects on the development of physical health problems, like headache and sleeping problems. The findings suggest that the health benefits of LTPA are affected by the extent of OPA and that a combination of both high OPA and LTPA is the most unfavourable combination. This combination is associated with an increase in physical health problems. Theoretical and practical implications are discussed.Show less
Food waste is a global problem, which necessitates addressing. A pilot (N = 56) and main study (N = 124) used online survey research to explore the expected negative relationship between viewing a...Show moreFood waste is a global problem, which necessitates addressing. A pilot (N = 56) and main study (N = 124) used online survey research to explore the expected negative relationship between viewing a food waste reduction-poster and food waste intentions, the expected negative relationship between self-efficacy and food waste intentions and the expected moderating effect of self-efficacy on the relationship between poster and food waste intentions. In the main study, participants were randomly allocated to a poster (N = 31) or control condition (N = 30) without a poster. Repeated measures ANOVA showed no differences between groups nor within participants when comparing food waste intentions between two measurement points. Regression analyses showed neither a main- nor a moderating effect of self-efficacy on the relationship between seeing the poster and food waste intentions. Limitations, suggestions and implications were discussed and the importance of future research into this subject was highlighted.Show less
For children with Autism Spectrum Disorder (ASD), social contact can be particularly challenging, which can impact their level of peer acceptance. This study aimed to explore the relationship...Show moreFor children with Autism Spectrum Disorder (ASD), social contact can be particularly challenging, which can impact their level of peer acceptance. This study aimed to explore the relationship between social contact and peer acceptance among children with ASD. We hypothesized that children with ASD had fewer contacts and were less accepted by peers than children without ASD. Furthermore, we hypothesized that increased social contact was associated with greater levels of peer acceptance for both children with and without ASD, but less strong for children with ASD in comparison to children without ASD. With a novel approach, this study documented the amount of social contact and the level of peer acceptance of 95 children in two special education schools in the Netherlands. The sample included 46 children with (Mage = 10.2, SD = 1.0) and 49 children without ASD (Mage = 11.3, SD=1.0), with an age range from 8 to 13 years, who were observed through proximity tags to measure social contact, and the LITOP questionnaire was utilized to assess the level of peer acceptance. MANOVA was employed to investigate whether children with ASD had fewer contacts and were less accepted than their peers without ASD and the hierarchical regression analysis was used to examine the potential relationship between social contact and peer acceptance and. Surprisingly, children with ASD engaged in contact with more partners and were more accepted than children without ASD, despite the expectedly shorter duration of contact. Moreover, no significant relation was found between social contact and peer acceptance, for the two groups alike. These findings indicate that peer acceptance may not solely depend on the quantity of contact, but rather on the quality and context. Consequently, it is advised that educators facilitate structured social activities to facilitate finding similar peers and shared interests. Further research is required to gain a deeper understanding of the nature of the contact and its emotional aspects, with the aim of developing more effective strategies for enhancing peer acceptance among children with ASD. This could be achieved through a combination of quantitative measurements, such as proximity tags and qualitative measurement, including observationsShow less
Math is a skill that is relevant throughout life. Therefore, a good mastery of math is crucial for a successful education and career. Previous research indicates that training spatial skills...Show moreMath is a skill that is relevant throughout life. Therefore, a good mastery of math is crucial for a successful education and career. Previous research indicates that training spatial skills improves both math and spatial skills in students. Spatial anxiety might influence the effectiveness of the training. This study aims to determine which spatial training condition works best to improve students' math and spatial skills and what role the spatial anxiety has on this effect. The training in the current research consists of mental rotation tasks. Four training conditions are compared in the current study: concrete, digital, video and control. In the concrete condition, the students can hold a physical figure identical to the task. In the digital condition, the students can turn the figure on their laptop screen. In the video condition, the students can watch a video of the figure turning. In the control condition, the students were not provided with any tools. After correcting for missing values, 189 students from group 7 and 8 of primary schools in the West of The Netherlands participated in the current study. Math and spatial skills were measured through tests. Spatial anxiety was determined using a questionnaire. The results showed that students improved their spatial skills between the pretest and the posttest across all conditions. However, no significant differences were found between the conditions. Math skills improved among students in the control, digital and concrete condition. Spatial anxiety was not found to affect gains in math and spatial skills. These findings were partially aligned with previous research. The differences could possibly be explained by differences in research design or limitations of the current study. Based on this study, several suggestions are made for future research, such as adding an additional control group that does not undergo training.Show less
