Over the past two decades, reflective writing has occupied an increasingly prominent position in composition theory, pedagogy, and assessment as researchers have described the value of reflection and reflective writing in college students' development of higher-order writing skills, such as genre conventions (Yancey, "Reflection"; White). One assumption about the value of reflection has been that skill in reflective writing also has a positive connection with lower-order writing skills, such as sentence-level conventions of academic discourse. However, evidence to confirm this assumption has been limited to small qualitative studies or deferred to future longitudinal research (Downs and Wardle). In the mixed methods assessment study presented here, we first investigated this assumption empirically by measuring the relationship between evaluative skills embedded in the genre of reflective writing and lower-order writing skills that follow sentence-level conventions of academic discourse. We found a high-positive correlation between reflection and writing assessment scores. We then used qualitative methods to describe key features of higher- and lower-scored reflective essays.