Abstract: Provided are an information processing device capable of utilizing a plurality of pieces of data having correlations, more effectively, and an information processing program to be used in the device. The information processing device processes information with a plurality of pieces of data stored in advance. The information processing device comprises storage means for storing the correlated pieces of data together with related information, data processing means for processing the pieces of data on the basis of the related information, and storage control means for storing the storage means newly with the data processed by the data processing means, together with the processed contents of the data as the related information.

Abstract: The present invention provides an educational data processing device to reutilize the answer data to a certain question as incorrect answer data for other questions and it also provides a data processing device to store data, question and answer with ease. The educational data processing device of the present invention comprises a computer with a CPU, a memory system, and input and output systems; a DSG, stored in said memory system consisting of multiple DS where each DS consists of two types of data, a question and answer; and a program, stored in said memory system that performs the following functions: (a) selects a question and answer data from a DS, and one or more answer data from randomly selected DS in said DSG; (b) presents a question and Multiple-choice answer set to the user through said output system.