Since the onset of the pandemic in 2020, many credentialing organizations have incorporated online remote administration of their examinations to enable continuity of their programs. This paper describes a research study examining several high stakes credentialing examination programs that utilized mixed delivery modes, including online remote testing at home, as well as testing in test centers. Candidates were monitored in real time by a test proctor, either remotely by video camera, or in person. The study examined the comparability of test scores, instances of irregular candidate testing behavior (potential cheating), and candidate test taking experience ratings across modalities. Overall, results of the study indicated that test scores were psychometrically sound and comparable across modes; rates of suspect test taking behavior were low and not significantly different across modes; and candidate experience ratings were favorable and unrelated to testing modality. Implications for future practice and research are discussed.