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Volume :42 Issue : 2 2014      Add To Cart                                                                    Download

The Relationship between Speed of Information Processing and Intelligence

Auther : Hesham Alasali

To verify the existence of a relationship between information processing speed and intelligence, the level of intelligence was measured by using Raven's Progressive Matrices Scale in a sample of 30 students from the Faculty of Education at King Saud University with age (M = 22.13; SD = 1.25). Each subject was exposed to three elementary cognitive tasks (Stroop task,  Eriksen flanker task, and The Posner's letter matching task). Each task included two experimental conditions: first, the congruent condition that reflects the automatic processing of information; second, the incongruent condition that reflects the controlled processing of information. The results of the study revealed the presence of a negative correlation between the time of automatic processing of information and intelligence (r= -0.40 to -0.55), and the existence of a negative correlation between the time of controlled processing of information and intelligence (r= -0.8 to -0.50). The value of the correlation coefficient between the automatic and controlled processing was varied across the different tasks. The largest value of the correlation coefficient between automatic and controlled processing was in a Stroop task (0.91), Posner's letter matching task (0.71), then Eriksen flanker task (0.69). Finally, The results showed a significant effect for the type of information processing (F= 21, 362, p  .001) and the nature of the task (F= 31,695, p  .001)  in the speed of response.
Keywords: Intelligence; Speed of information processing; Elementary cognitive tasks; Automatic processing; Controlled processing.

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