The paper assesses the aims and arguments of critical social science a
nd the reconstructions of it provided by critical realist philosophy.
It argues that attempts to derive normative conclusions on the basis o
f explanatory critiques of social phenomena are flawed in several impo
rtant respects. Accounts of critical social science standardly underes
timate the problems of justifying critical standpoints and finding alt
ernative social forms which generate fewer problems than those they re
place, and hence lead to net improvement. By arguing that value positi
ons can be derived from explanatory critiques, the philosophical recon
structions make light of the normative issues raised by proposals for
social change. They also ignore the question of the feasibility of alt
ernative systems and the prevalence of structures which generate both
good and bad effects. While the reconstructions succeed in defending c
ritiques centering on straightforward cases of false beliefs or the fr
ustration of universal human needs, in others, where culturally-specif
ic needs and issues of social responsibilities are involved, they fail
to recognise the need to address prior normative questions. It is the
refore argued that the aims and claims of critical social science need
to be moderated and its dependence on normative discourse properly ac
knowledged.