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- W2520932348 endingPage "e0163076" @default.
- W2520932348 startingPage "e0163076" @default.
- W2520932348 abstract "The approximate number system (ANS) was proposed to be a building block for later mathematical abilities. Several measures have been used interchangeably to assess ANS acuity. Some of these measures were based on accuracy data, whereas others relied on response time (RT) data or combined accuracy and RT data. Previous studies challenged the view that all these measures can be used interchangeably, because low correlations between some of the measures had been observed. These low correlations might be due to poor reliability of some of the measures, since the majority of these measures are mathematically related. Here we systematically investigated the relationship between common ANS measures while avoiding the potential confound of poor reliability. Our first experiment revealed high correlations between all accuracy based measures supporting the assumption that all of them can be used interchangeably. In contrast, not all RT based measures were highly correlated. Additionally, our results revealed a speed-accuracy trade-off. Thus, accuracy and RT based measures provided conflicting conclusions regarding ANS acuity. Therefore, we investigated in two further experiments which type of measure (accuracy or RT) is more informative about the underlying ANS acuity, depending on participants' preferences for accuracy or speed. To this end, we manipulated participants' preferences for accuracy or speed both explicitly using different task instructions and implicitly varying presentation duration. Accuracy based measures were more informative about the underlying ANS acuity than RT based measures. Moreover, the influence of the underlying representations on accuracy data was more pronounced when participants preferred accuracy over speed after the accuracy instruction as well as for long or unlimited presentation durations. Implications regarding the diffusion model as a theoretical framework of dot comparison as well as regarding the relationship between ANS acuity and math performance are discussed." @default.
- W2520932348 created "2016-09-23" @default.
- W2520932348 creator A5009937072 @default.
- W2520932348 creator A5035814613 @default.
- W2520932348 creator A5045868484 @default.
- W2520932348 creator A5066448748 @default.
- W2520932348 creator A5077643488 @default.
- W2520932348 creator A5082346245 @default.
- W2520932348 date "2016-09-16" @default.
- W2520932348 modified "2023-10-09" @default.
- W2520932348 title "A Systematic Investigation of Accuracy and Response Time Based Measures Used to Index ANS Acuity" @default.
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