Degrees of specificity in task analysis.
The effects of training identical tasks using three different degrees of task-analysis specificity (long, 28 steps; medium, 14 steps; and short, 7 steps) were assessed. Mildly, moderately, and severely mentally retarded vocational rehabilitation clients were taught to assemble three apparatuses (lawn mower engine, electric drill, carburetor) in a counterbalanced design. The short task analysis resulted in most errors in training, but training time did not differ. A Level of Retardation X Treatment interaction indicated that although all subjects made more errors during training with the short task analysis, severely retarded subjects made the most errors in that condition.
D000328:Adult; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D007360:Intelligence; D008297:Male; D008875:Middle Aged; D012050:Rehabilitation, Vocational / Q000379:methods*; D013647:Task Performance and Analysis; D013663:Teaching / Q000379:methods