A historical antagonism between the advocates of quantitative evaluation methods and the proponents of qualitative evaluation methods has stymied the recognition of the value to be gained by utilizing both methodologies in the same study. The integration of quantitative and qualitative methods within a single evaluation has synergistic effects in the three major phases of design, data collection, and analysis. An ongoing study, the evaluation of the State Capacity Building Grants Program in educational dissemination, is used to illustrate the benefits obtained by integrating methods during the design, data collection, and analysis phases. The examples underscore that timing considerations are of major importance to the management of an evaluation which seeks to benefit from both methodologies. Three time sequences are possible: qualitative methods can precede, follow, or proceed concurrently with quantitative methods. The costs involved in such a methodological marriage are also explored. For longitudinal evaluations, the benefits seem to outweigh the costs. The integration of methods offers enormous potential for improving evaluation strategies. (Author/CP)