Alternatives to a solitary testing format can involve students working in teams to arrive at the correct answer. We compared two group assessment methods, cooperative and competitive, to a solitary testing approach. In most comparisons examining the undergraduate respondents' (N = 77) performance, the two group-testing methods were equivalent. Both group methods were superior to the solitary testing format in determining students' knowledge of the course material and confidence in their answers. Moreover, rather than one person generating the team's answer, most team members actively participated in the decision-making. The cooperative group surpassed the solitary testing group in terms of preference for their format of assessment. (Contains 1 figure.)