A number of social factors are combining to raise the profile of ethic
al issues for behavior analysts and behavior-modification professional
s, as for all psychologists. Some popular misconceptions have led to b
ehavior modification being seen as coercive. These misconceptions are
rebutted, and the ethical basis of behavior modification in behavioral
analysis is examined. The key features of contemporary behavioral ana
lysis and behavior modification are the public specification of object
ives and methods, and the use of functional analysis. However, current
problems with functional analysis may make the use of higher order pr
inciples such as professional codes of ethics appropriate. Ethical con
cerns raised by the particular examples of social validity measures an
d parent training programs are reviewed. These emphasize the importanc
e of putting behavior modification into its social context and thus en
suring that the Values of the wider community are acknowledged.