Risk perception is not strictly a matter of sensory perception, but of atti
tudes and expectations. As such, it can be studied by reasonably well devel
oped methods of attitude measurement and psychological scaling. Such measur
ement needs to be applied in a pragmatic fashion, however, since the discus
sions of fundamental measurement and requirements of scale levels appropria
te for various types of statistical analysis has failed in establishing a u
seful basis for empirical research. The paper also discuses sampling proced
ures and the response rate problem. In risk perception work, there is usual
ly a bias involving too many respondents with an above average level of edu
cation, but that variable tends to be weakly related to risk perception var
iables. Finally, post-modern claims and their rejection of quantitative met
hods are critically discussed.