Analysis of Reliability and Generalizability of One Instrument for Assessing Visual Attention Span: MenPas Mondrian Color

Attention is one skill related to processes such as memory or learning, so, its evaluation is very interesting in areas such as clinical, educational or sports. The aim of this paper is to analyze the reliability and generalizability of one online computerized tool, named MenPas Mondrian Color, that has been developed for the visual attention span assessing and training. In addition, it has been intended to determine any existing relationships among the different parameters of the tasks performed in order to check the coherence of the results obtained in the executions. In 11,540 analyzed executions of 1064 users from different American, African and European countries, 6543 of them were performed by women (56.70%) and 4997 by men (43.30%). The age distribution showed that all of the participants were aged 18-55 years, with an average of 25.50 +/- 8.91 years. The analyzed tool is called MenPas Mondrian Color which is included in the MENPAS 1.0 platform. Reliability (Cronbach's Alpha), variance components and generalizability analyses were carried out in order to analyze the quality of the data gathered by this tool. The obtained results indicated optimal scores in the analyses performed, suggesting that the data gathered are reliable, precise and statistically generalizable to a larger population. Likewise, correlation analyses indicated that the difficulty of the task is related to the effectiveness in its executions, indicating that this is a highly sensitive tool.