Mexican immigrants working at a wholesale nursery were involved in developing user instructions for a computer-based instruction system. Sixty-one Latinos with 0 to 16 years of education completed user instructions delivered on the computer, and all but 3 completed training content about the nursery. Based on objective criteria, program use was rated as "somewhat easy" to "easy" for most participants with more than 3 years of education, whereas 50% of those with 0 to 2 years of education completed content with "difficulty" or "struggled. " Participants who completed the computer-based posttest (n = 22) had a mean performance of 96%, which was significantly better than the performance of 87% (n = 18) on an oral pretest (p = .003, d = 1.02). Thus, computer-based instruction can effectively train immigrant Latinos who have very limited formal education.

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