Critical thinking is an important outcome of a college education. Assessment techniques that require students to demonstrate their understanding of course concepts are referred to as authentic assessment and promote the development of critical thinking. Little research exists on the types of assessment and grading practices utilized by community college instructors. This research examined the incidence and nature of various assessment practices used by community college faculty for basing the course grade. In addition, the study also examined the percentage of course grades that was based on traditional and authentic assessment and factors that may influence the use of assessment techniques. To facilitate the study, an online survey instrument was used to obtain data from faculty employed at two community colleges in California. Study results revealed that a variety of assessment practices are used by community college instructors with differences in relation to faculty status, level of academic achievement, online teaching status, and years of teaching experience. In addition, findings indicate that faculty primarily use authentic assessment in basing the course grade as compared to objective or traditional assessment--suggesting that they are using assessment techniques that promote critical thinking. A significant finding was that part-time faculty emphasize objective exams, attendance, and homework whereas full-time faculty emphasize research projects and learning journals. Findings suggest that professional development may be warranted for faculty by faculty status.