1. De Brief Symptom Inventory (BSI): De betrouwbaarheiden validiteit van een handzaam alternatief voor de SCL-90 [The Brief Symptom Inventory (BSI): The reliability and validity of a practical alternative to the SCL 90];Beurs;Maandblad Geestelijke Volksgezondheid,2006
2. The need for cognition;Cacioppo;Journal of Personality and Social Psychology,1982
3. Best practices in exploratory factor analysis: Four recommendations for getting the most from your analysis;Costello;Practical Assessment, Research & Evaluation,2005
4. Hedonia, eudaimonia, and well-being: An introduction;Deci;Journal of Happiness Studies,2008