A meta-analysis was conducted to evaluate the effectiveness of client-clinician matching on the basis of race-ethnicity on overall functioning, service retention, and total number of sessions attended for African American and Caucasian American adult populations in mental health services. The analysis included 10 published and unpublished studies between 1991 and 2001. A random effects meta-analysis model showed no significant differences between client-clinician dyads matched racially-ethnically and those dyads not matched with respect to overall functioning, service retention, and total number of sessions attended. The finding was consistent for both African American and Caucasian American clients. Further implications of the findings are discussed. The authors also encourage more complete reporting of data suitable for quantitative research synthesis.