|Table SA5. Standard errors of the percentage of adults and of participants who participated in each type of formal learning activity: 2004–05|
|Formal learning activity||Percent of adults||Percent of participants|
|English as a Second Language class||0.17||0.34|
|Basic skills/General Educational Development class||0.22||0.45|
|College/university degree or certificate program||0.47||0.93|
|Vocational/technical diploma, degree, or certificate program||0.18||0.38|
|Personal interest course||0.71||1.23|
† Not applicable.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Adult Education Survey of the 2005 National Household Education Surveys Program.