DefinePK

Abstract

The model which can be used to make a prediction about how long you need to replace the assessment item bank (AIB) or make significant changes to it (or update it) is considered in the paper. The target function is proposed to predict the number of students’ testing sessions, on the assumption that students purposefully are making copies and exchanging each other of test items and answers to them, so actually after a while they have a large number of templates with ready-made answers. In this case, the test does not give an objective assessment of knowledge and an item bank has to be updated. The paper provides a formula for calculating the cardinality of assessment item bank, length of single test or amount of tasks (items) per one session of testing, and the amount of testing sessions during the entire period of use of the item bank.