A new verbal-instruction system, which ensured the presentation of step instructions automatically, was used to help a woman with moderate intellectual disability and blindness perform food- and drink-preparation tasks. During Part I of the study, this system was compared with a system requiring the woman to seek instructions on her own. Two tasks were used, one with each system. During Part II of the study, the new system was applied with four additional tasks. The results of Part I showed the following: (a) the woman’s level of correct performance on the task carried out with the new system was higher than the level on the other task and (b) performance of this latter task improved when the new system was used with it. The results of Part II showed satisfactory performance with all four tasks carried out with the new system. The implications of these data were discussed.
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