A study examined the link between on-the-job training (OJT) and job performance in a randomly selected sample of 50 skilled maintenance craftpersons employed by the city of Chicago. The sample was identified from the training sheets signed by 160 employees who participated in OJT in a 1-month period. The majority of the employees agreed with current trends and ideas found in research concerning OJT. Employees overwhelmingly agreed that the subject matter of their OJT program was logically organized and that the instructor presented the subject matter well, was organized and prepared, stressed safety rules, and related the subject matter of the OJT to the employees' work. When asked about written materials and training facilities, 92% of the employees responded positively. The employees agreed that the OJT made them better able to do the following: assist an injured employee, use fire extinguishing equipment, understand a train operator's viewpoint, and recognize various safety zones and warnings. The employees' overwhelmingly positive responses about the content and relevance of their OJT was concluded to be evidence in support of the hypothesis that employees receiving OJT experience increased job satisfaction, work knowledge, responsibility, and productivity. (The employee questionnaire is included.) Contains 13 references. (MN)