Samenvatting

This study investigates the effect of providing information about decision making on aggression of clients of the Dutch Employee Insurance Agency (UWV). The expectation is that providing adequate information leads to a decrease in aggression, because it influences feelings of informational justice and frustration. UWV-clients (N=1.415) participated in an experimental scenario study (adequate vs. limited information providing). Next to aggression, psychological, UWV and social demographic characteristics were measured. Compared to limited information, receiving adequate information results in lower aggression. Clients with more negative affect show more aggression, but receiving adequate information especially reduces aggression in these clients.