Abstract
Proportion compatible manipulations are often used to index strategic processes in selective attention tasks. Here, a subtle confound in proportion compatible manipulations is considered. Specifically, as the proportion of compatible trials increases, the ratio of complete repetitions and complete alternations to partial repetitions increases on compatible trials but decreases on incompatible trials. This confound is demonstrated to lead to an overestimation in the magnitude of the proportion compatible effect in the context of both a Stroop and a Simon task. Implications for previous research and directions for future research using proportion compatible manipulations are discussed.
Original language | English (US) |
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Pages (from-to) | 1044-1052 |
Number of pages | 9 |
Journal | Journal of Experimental Psychology: Human Perception and Performance |
Volume | 34 |
Issue number | 4 |
DOIs | |
State | Published - Aug 1 2008 |
Externally published | Yes |
Keywords
- Attentional control
- Compatibility effects
- Selective attention
- Strategic control
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Arts and Humanities (miscellaneous)
- Behavioral Neuroscience