Postsecondary transition programs have emerged to prepare adult learners to enter college with either limited or no remediation work needed in developmental education. This article examines the results of a pilot study, in which participants (ages 20 years and older who held GED® credentials or high school degrees) received accelerated instruction in reading, writing, mathematics, learning framework, and college knowledge. These transition programs, which took place at five sites in Texas, used a short-term (10 weeks or fewer) but intensive (at least 120 contact hours) cohort intervention model. Of the 20 pairs of pre- and postprogram assessments, which evaluated student achievement gains in reading, writing, and, mathematics, 18 resulted in statistically significant increases. However, many participants who realized achievement gains did not reach the college readiness benchmarks (as measured by the assessment instrument) in all three subject areas. However, evidence suggests that these students are better prepared academically than before the program.