The research studies reported in this book were completed between June,
1976 and November, 1979, with a USPHS research grant (MH- 27849) from
the Center for Studies of Crime and Delinquency, National Institute of
Mental Health. Every phase of the project was an exercise in combining
the research methods of psychology with the concerns of law, legal
systems, and legal process. Research psychologists will be especially
interested in our efforts to apply psychological constructs and research
methods to a difficult decision-making problem in law. This report
describes in some detail the project's development of experimental
measures of psychological condi- tions related to legal standards and
demonstrates the ways in which research design was influenced by
concerns of law and the juvenile justice system. Lawyers, judges, and
youth advocate groups have already ex- pressed considerable interest in
the implications of the project's results for the formation and
modification of juvenile law and procedure. In each chapter, I have
attempted to describe carefully the ways in which the empirical research
results are applicable to these concerns, and I have tried to specify
the limits which must be acknowledged in inter- preting the results for
application in the legal process.