On the basis of the testing and analysis conducted thus far in the study, the following conclusions are drawn: 1) People can modify their writing habits to a significant extent with the expenditure of approximately 30 minutes of training effort. 2) The effects of imposed physical conditions and work pressures, simulating some typical work situations, have not been shown to produce significant deterioration of performance where proper motivation exists. 3) Population factors may be significant in some areas of application, making specialized training methods necessary. In addition, some personnel selection may be required, since approximately 15% of the personnel account for about half of the substitutions errors.