We began our investigation by comparing Spring 2012 student performance in the traditional class with Fall 2012 outcomes in the ALC. An independent-samples t test was conducted using scores on the ACS exam as the criterion variable, and a moderate-sized performance difference was found between the semesters favoring the ALC class, a difference that was statistically significant at the p < .01 level (see Table 5). We performed the same analysis on the replicated class held in an ALC in Spring 2013 and found a very small nominal difference in ACS exam scores favoring the ALC class, but this difference was not statistically significant (see Table 6).