Acta Politica is the official journal of the Dutch Political Science Association.

Lack of money impacts how a person takes financial decisions: now or preferably later. Procrastination and avoidance behaviours in turn have an effect on lack of money, which can result in a sense of loss of control. These are the findings of psychologist Leon Hilbert in his PhD research, although the…

The new Executive Board of the Institute of Psychology became effective on 1 February 2022. Scientific director Andrea Evers tells us where she gets her energy from.

As a student in the programme Politicologie: Nationale en Internationale Politiek, you will examine societies and power relations with the analytical eye of a scientist. You will deal with interesting, important topics such as elections, civil wars and international cooperation. In doing so, you will…

The Leiden University Political Science bachelor’s specialisation International Relations and Organisations enjoys a high popularity. To assure the quality of education, the number of students it admits is limited. This is known as a 'numerus fixus'. If there are more applications than this ‘numerus…

Do objectively correct solutions to ethical dilemmas exist? Or is ethics always a matter of your opinion against my opinion? How do you know what to do? What kind of thing is ethics anyway? Can you be an expert in ethics?

Marietje Beemsterboer defended her thesis on 12 June 2018 (in Dutch)

Soon you will have graduated, and then what? Maybe you've been dreaming of becoming a psychologist for years, but don't want to know where to start. In this episode, clinical psychologist and lecturer Sepideh Saadat tells you how to go about it.

Better supervision of PhD candidates, clear guidelines on career paths and an MRI scanner that can be accessed by all researchers: these are the recommendations from the new self-evaluation. Colleagues say: ‘This forces us as an institute to formulate our mission and vision more precisely.’

Following China and Italy, it appears that the United States is becoming the next epicentre of the coronacrisis. Can the US handle this crisis? Is president Trump dealing with the situation correctly? We asked Leiden America expert Sara Polak.

A basic income would not necessarily mean that people would work less. This is the conclusion of a series of behavioural experiments by cognitive psychologist Fenna Poletiek, social psychologist Erik de Kwaadsteniet and cognitive psychologist Bastiaan Vuyk. They also found indications that people with…

Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters

Professor Mariska Kret has received the Mercator Sapiens Stimulus, a new science prize from the Royal Holland Society of Sciences and Humanities (KHMW). The prize consists of a sum of 1m euros.

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Femke Bakker, PhD candidate at Leiden University‘s Institute of Political Science, has been appointed to the Early Career Committee of the International Society of Political Psychology (ISPP).

On 27 September 2017 a new book by Prof. Luuk van Middelaar appeared, entitled The new politics of Europe. The book is at the same time a front line account of Europe’s recent crisis years – from monetary turmoil to tensions around Ukraine, from refugee crisis to Brexit – and an analysis of the Union’s…

The essay For progress has been published to mark the 450th Dies Natalis of Leiden University. In 2025, we are celebrating our 450th anniversary, and the theme of this special year is Ahead of the Times.

Cognitive decline and anxiety in Parkinson’s disease are often only recognised at a late stage, in spite of their great impact. Research by Marit Ruitenberg focuses on new tests and methods to show up these symptoms earlier and make them more specific.

Assistant professor and dual PhD candidate, Pieter Slaman writes in Binnenlands Bestuur about the fact that the German occupier lengthened the period of mandatory education in The Netherlands.

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Check your application deadlines here. Take note: Not all programmes have the same deadlines; always check the individual programme descriptions for application deadlines.

Rebecca Schaefer received the new science communication grant for the SNAAR Festival in December 2020. With the festival, Schaefer wants to make music and science accessible to a wide audience. How exactly? That's what she tells in this issue of Humans of Psychology.

Annelinde Vandenbroucke received the new science communication grant for NeurolabNL Young in December 2020. This grant will help her in her mission: to make science attractive for and by youth. Vandenbroucke tells Humans of Psychology why youth is important to science and vice versa,

Most students of Psychology want to work in mental healthcare (GGZ). This makes the master’s specialisation in Clinical Psychology a logical choice. It was an option for alumna Ruth van Vugt for a long time, but she decided to explore further and has since successfully completed the Health and Medical…

In this episode, we talk with Mariska Kret about the expressions of emotions in humans and animals. Mariska explores the similarities and differences in emotion expression in humans and primates. Want to learn more about Mariska's research and discover why it's important that we learn more about animal…

In this episode we talk with Mara van der Meulen about prosocial behaviour and social exclusion in children. Van der Meulen also explores the role of genetics and environment in the development of social behaviour. To find out more about her research on why some children are beter able to develop their…

Davood Ghara Gozli (Cognitive Psychology) has received a Veni grant. As such, he is officially recognised as a promising young scientist by science funding agency NWO and will receive financial support to further develop his ideas.

Laura van der Aar talks about the role of self-image in making decisions for future education. In her research, Laura investigated the importance of paying attention to the development of self-image, and how this can better support teenagers in their study choice.

The Institute of Public Administration at Leiden University serves as a bridge between academic research and practical application from its base in The Hague.

The Institute of Political Science has a multi-dimensional research programme that promotes the unity of the institute as an intellectual community rooted in the social sciences and especially political science, while enabling overlapping groups of colleagues to develop particular research agendas within…