In recent decades, there has been an increased scholarly interest in negotiation, both on distributive and integrative bargaining. The latter is characterized by the expansion of the resource pool...Show moreIn recent decades, there has been an increased scholarly interest in negotiation, both on distributive and integrative bargaining. The latter is characterized by the expansion of the resource pool or pie, in a way that both negotiators benefit from the outcome. The resource pool is only expanded when negotiators manage to create value by finding alternative solutions to issues that increase the joint gain of both parties. In this study, we used a two-person roleplay negotiation conducted face-to-face in an informal setting (N = 95) to explore the influence of alcohol and order of presented issues on joint gain. We find no systematic differences within the alcohol conditions and order conditions on joint gain. While some of the possible patterns we find are not conclusive yet, further research could yield interesting results.Show less
Research master thesis | Developmental Psychopathology in Education and Child Studies (research) (MSc)
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Individual differences in behavior are best explained through a multisystem approach by integrating neurobiological, neurocognitive, and social environmental factors. This longitudinal study...Show moreIndividual differences in behavior are best explained through a multisystem approach by integrating neurobiological, neurocognitive, and social environmental factors. This longitudinal study examined whether early physical aggression could be predicted by stress regulation, inhibitory control, risk background, and sex. In addition, this study is among the first to investigate whether the four stress response patterns of the Adaptive Calibration Model (Del Giudice et al., 2011) could be generalized to 12-month-old children by studying: autonomic nervous system (ANS), sympathetic nervous system (SNS), parasympathetic nervous system (PNS), and hypothalamic pituitary adrenal (HPA) axis. ANS was indexed by heart rate, SNS by salivary alpha-amylase and pre-ejection period, PNS by respiratory sinus arrhythmia, and HPA axis by salivary cortisol. The sample consisted of 214 mother-child dyads (116 boys) with an equal number of high- and low-risk backgrounds. Physical aggression was assessed through maternal reports at 12, 20, and 30 months of age. At 12 months, children performed an inhibitory control task and the fear task (robot paradigm) was used to measure baseline, response, and recovery levels of the stress systems. Latent profile analysis revealed three profiles: (1) ANS Responders, (2) Moderate Arousal, and (3) Hormonal Responders. No significant differences were found between the profiles with regard to inhibitory control, average age of mother and child, number of boys and girls, and number of high- and low-risk children. Results showed that higher physical aggression scores were associated at 12 months with ANS Responders and lower inhibitory control, at 20 months with Hormonal Responders, boys and high-risk, and at 30 months with boys and high-risk. In addition, an interaction effect was found at 20 months: higher inhibitory control in girls was associated with lower physical aggression scores, but not in the Hormonal Responders. The discussion highlights the importance of using a multisystem approach to explain individual differences in early physical aggression.Show less
Research master thesis | Psychology (research) (MSc)
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Rules regulate society as they help to predict social interactions. Groups, however, do not always abide by rules. Instead, they break them when the conditions are right. Here we hypothesized that...Show moreRules regulate society as they help to predict social interactions. Groups, however, do not always abide by rules. Instead, they break them when the conditions are right. Here we hypothesized that rule abidance behavior is determined by a) an individual choosing another for mutual benefit based on their reputation and b) the social-environmental incentives like fairness and dishonesty. We had three participants building a reputation for their willingness to abide by or break rules. A fourth participant used that information to choose one to three participants, then played several rounds of a dictator game and a die-roll task. Participants were chosen more often when their reputation was in line with environmental incentives, where merely transitioning from one environment to another strengthened that effect. Regulators should therefore ensure the consistency and kinds of environmental incentives that individuals in power positions face across environments for controlling resulting rule abidance behavior.Show less
Research master thesis | Psychology (research) (MSc)
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Previous research investigating the factors that shape a person’s degree of intergroup prejudice has focused primarily on relatively high level ideological and personality traits. In a largely...Show morePrevious research investigating the factors that shape a person’s degree of intergroup prejudice has focused primarily on relatively high level ideological and personality traits. In a largely separate body of work, psychophysiological predispositions towards threat sensitivity have been linked to ideological constructs. The current work integrates these two bodies of work by introducing a novel approach to measure implicit threat sensitivity and (theoretically) linking it to intergroup prejudice. Specifically, it was investigated whether individual differences in cognitively assessed sensitivity to threatening information were associated with a greater degree of implicit bias and explicit prejudice towards a stereotypically threatening minority-group (i.e., Muslims). While results did not support a relationship between threat sensitivity and intergroup prejudice, exploratory data, as well as limitations and implications of the current work, encourage future research.Show less
Research master thesis | Psychology (research) (MSc)
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Background: Theoretical models propose that parenting practices play a role in the development and maintenance of child depression. However, previous meta-analytic findings indicated that parenting...Show moreBackground: Theoretical models propose that parenting practices play a role in the development and maintenance of child depression. However, previous meta-analytic findings indicated that parenting accounted for only 5-11% of the variance in childhood depression, with varying effects for different types of parenting behaviors. Research Question: The current study aimed to investigate the association between observed negative/positive parenting behavior, childhood depression, and child gender, while controlling for the confounding effects of type of informant and assessment approach for childhood depression. Method: Two meta-analysis were conducted for the negative parenting – childhood depression and positive parenting – childhood depression association, while including moderating and confounding variables. The current study included thirty articles in total, with nineteen examining negative parenting behaviors and twenty-three examining positive parenting behaviors. Results: Observed negative parenting behavior was positively and observed positive parenting behavior was negatively related to childhood depression, with overall small effect sizes. Type of parenting behavior, child gender, and assessment approach for childhood depression did not moderate the associations. Type of informant for childhood depression explained some variance in the positive parenting – childhood depression association. Conclusions: Parenting interventions for childhood depression might aim to improve a broader range of parental behaviors. Future research is advised to compare actual to perceived parenting behaviors and investigate the direction of the parenting – childhood depression association, while adopting a multiple levels of analysis perspective. This could possibly contribute towards developing most effective personalized interventions for childhood depression, while lowering the high burden of depression.Show less
Research master thesis | Psychology (research) (MSc)
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Having an extra sex chromosome is known as sex chromosome trisomy (SCT). This may result in 47,XXY, 47,XXX, or 47,XYY. Previous research suggested that social attention to the eyes is reduced in ...Show moreHaving an extra sex chromosome is known as sex chromosome trisomy (SCT). This may result in 47,XXY, 47,XXX, or 47,XYY. Previous research suggested that social attention to the eyes is reduced in (young) adults with SCT and that individuals with SCT have more autistic characteristics compared to typically developing (TD) controls. It was unknown whether the group differences were also present in early childhood. The current study aimed to explore social attention, autistic traits, and their relation in three subgroups of children with SCT (47,XXY, 47,XXX, and 47,XYY; N = 70), aged 3 to 7 years, in comparison to TD peers (N = 62). Social attention to the eyes was measured using three eye-tracking video paradigms: A single-face condition, a multiple-face condition and a social interaction condition. Autistic traits were measured using the Social Responsiveness Scale-Second Edition. Results showed a difference in social attention between children with SCT and TD children during the social interaction condition. There was no difference in social attention between the SCT subgroups. The SCT group showed more autistic traits than the TD group and the 47,XXX subgroup had more autistic traits than the 47,XXY subgroup. There was a significant relation between social attention during the single-face condition and autistic traits in the 47,XYY subgroup only. Implications of these findings are discussed in relation to the importance of monitoring socio-cognitive challenges related to SCT in early childhood.Show less
