Abstract: Using Chinese words as experimental matrials，the study investigated the influence of category items repetition，familiarity and typicality of items，and category size on false recognition. Experiment 1 showed that false recognition responses to nonstudied category members increased with the number of items from the same category that were presented at encoding. In Experiment 2，the participants made more false recognition responses to category members of high familiarity degree. In Experiment 3，the participants produced more false recognition responses to category members of high typicality degree.In Experiment 4，participants did more false recognition responses to category members of small categories

Key words: category variables, false recognition, familiarity typicality, category size