Among the continuing challenges naturalistic evaluators face is the practical need for
defensible conclusions. Guba and Lincoln's external evaluation audit represents one
response to this need. In this article, we share our firsthand experiences with such audits,
including the evaluation context and the audits'purpose, procedures, and findings. From
these experiences, we offer suggestions for future audit practice and discuss several
controversies surrounding the audit concept. We conclude with the call for further
discussion on these and other controversies, but also with an interim consensus that the
audit represents a viable metaevaluative tool for enhancing the internal quality, the
external defensibility, and thus the stature and utilization of naturalistic evaluation.