This is a case study of a case study In order to examine the impact of cond
ucting case-study research on preservice teacher Carrie's professional deve
lopment, I followed her work with emergent reader Beth. Field-based researc
h provided a context for posing meaningful questions and promoted professio
nal reflection for Carrie in two areas: prior beliefs (autobiography educat
ion, professional identity) and contexts for literacy development (child, f
amily, school). Qualitative procedures (prolonged engagement, persistent ob
servation, peer debriefing examining self-as-instrument, triangulation) eme
rged as vital sources for focusing research questions and framing reflectio
ns. Points that deserve further study include (a) structured discussion unc
overed assumptions that written reflection often did not, (b) the role of r
esearcher encouraged Carrie to consider novel ways to negotiate professiona
l relationships, and (c) autobiography, proved a factor in case-study selec
tion and research questions.