Print version ISSN 1688-4094
PRIETO, Gerardo et al. Difficulty analysis ina a spatial visualization item bank. Cienc. psicol. [online]. 2007, vol.1, n.1, pp. 71-79. ISSN 1688-4094.
This work is the description of the validation process of a Visualization item bank, whose items were generated from a Surfaces Development task. The item bank was developed from Cognitive Design framework. The tests were applied to samples of first-year Engineering students. The item difficulty was estimated using the Rasch model. We observed that the item difficulty is associated to a task conditions involved in the ability of mentally transforming the objects and of maintaining active the spatial information during the transforming process.
Keywords : Visualization; Item bank; Rasch model; Test validity.