How does attention relate to the ability-specific and position-specific components of reasoning measured by APM?

The aim of the present study was to clarify the nature of the ability-specific and position-specific components of Raven's Advanced Progressive Matrices (APM) by relating them to a number of types of attention. The ability-specific component represents the constant part of cognitive performance whereas the position-specific component reflects the changes in processing of reasoning items as a result of the changing item position. A special model denoted fixed-links model was used to decompose the data of APM into independent components. Both components were related to two higher-order units of attention, perceptual attention and executive attention, which were derived from the various types of attention. In a sample of 226 participants the position-specific component of APM showed a substantially higher link with executive attention than with perceptual attention whereas the ability-specific component only showed a moderate link with perceptual attention.

► The nature of the position effect in reasoning items was investigated.
► Position- and ability-specific components of APM were obtained by a fixed-links model.
► The components were related to a number of types of attention.
► Executive attention serves as a major source of the position effect.