Following theoretical considerations that relate attention to perception and also to the executive control of performance in complex tasks ( Bundesen, 1990 ; Logan & Gordon, 2001 ), two latent factors underlying individual differences in attention measures are assumed: Perceptual attention and Executive attention. The included attention measures are derived from the neuropsychology-based attention model by Sturm and Zimmermann (2000) , the action-oriented five-component model by Neumann (1992) , and the working memory model according to Baddeley (1986) . Furthermore, one psychometric attention measure ( Moosbrugger & Goldhammer, 2005 ) was selected. A sample of 232 students aged between 19 and 40 completed a test battery of 11 attention and concentration tests. For investigating the appropriateness of the hypothesized two-factor structure, confirmatory factor models, including Perceptual attention and Executive attention as latent factors, were tested. The results support the two-factor structure and, thereby, the hypothesis, that perceptual and executive attention are major factors underlying individual differences in attention measures.