At UWA, I have an honorary appointment for the School of Psychological Science. At Tilburg university I have an assistant prof position at the department of social psychology.

I am an organizational researcher and team player with project management experience. I thrive under pressure while aiming for quality and realistic expectations. I have an interest in two areas: 1) creative measurement approaches for personnel recruitment, selection, and assessment and 2) the engagement of volunteer workers. I like to learn new things, explore opportunities with a positive attitude, and value relationships over anything else. 

After working as a personnel selection and assessment consultant for NOA bv I completed my PhD in 2016. In my PhD I studied the assessment of contextualized personality and vocational interests. Directly after completing my PhD I moved to Australia where I worked as a postdoctoral researcher on a large volunteer recruitment and engagement project for four years. Please see my LinkedIn page for a detailed resume.

Current: Assistant prof at Tilburg University https://www.tilburguniversity.edu/staff/d-j-holtrop

2016-2021 Post doc at UWA and Curtin investigating volunteer engagement.

2012-2016
PhD student at VU Amsterdam University, dep. of Social and Organizational psychology
Supervisors: Prof. dr. Marise Ph. Born, Prof. dr. Reinout de Vries and dr. Remko van den Berg
Title: Improving personality and interest measurement for purposes of selection and assessment in a multiethnic population.
Link: http://dare.ubvu.vu.nl/handle/1871/54398
The first part of the project focused on using situational description in personality inventories and how such modifications may influence responses of cultural groups. The second part of the project focused on the relation between vocational interest, personality and prestige. The project financially supported by the NOA foundation. Successfully defended 17 May 2016.

2008-2016
Consultant, psychologist and test developer at NOA (assessment company and online test distributer)
Main activities: Leading large scale assessment projects, advising clients on selection matters, developing tests, studying and reporting the effectiveness of selection and coaching interventions, sales, and training.