The performance of 57 Mexican American bilingual college students on Spanish and English versions of problem solving tasks was investigated. The tasks included word recognition, sentence verification, reading span, syllogisms, and reasoning. The results indicated that the subjects used similar cognitive skills in performing both the Spanish and English language tasks. Although the subjects' reading and language proficiency was higher in English, they performed similarly in both languages. Their responses were as accurate in Spanish as in English, but slightly slower. It was concluded that bilingual students from strong educational backgrounds are effective in transferring cognitive skills from one language to another. The cognitive tasks are appended. (Author/RW)