the assessment of knowledge after training fro pd is a routine activity; in our unit it is carried out using indicators relating to the following results criteria: handling of the process, of infection, of hydration, of nutrition/diet. knowledge is assessed in 71 patients. three levels of complexity in training were defined: level 3 (teaching about peritoneal dialysis given simultaneously with teaching on handling of the cycler), level 2 (training in capd and subsequently in handling the cycler) and level 1 (standard training with personally tailored objectives). the highest evaluations appear in the option of direct level 3 training which we have considered to be the most complex, which coincide with the youngest patients with the highest educational levels. this appears in all the indicators evaluated with slight modifications. in the level 2 option the time used in learning is significantly higher to obtain a similar level of knowledge as patients in the capd option, which consider the least complex. based on the results obtained, we consider that patients can complete learning in their chosen option, provided that they have a minimum educational level (they know how to read and write) and this does not entail a reduction in the level of knowledge acquired which appears to be more closely related to the age and educational level of the patient than with the complexity of the process.