Psikhologicheskie Issledovaniya • ISSN 2075-7999
peer-reviewed • open access journal


Dodonov Y.S. General intelligence and speed of enumeration

Full text in Russian: Додонов Ю.С. Общий интеллект и скорость опознавания количества
Moscow City University of Psychology and Education, Moscow, Russia

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A well-known in cognitive psychology trend of increasing enumeration time with an increase in the number of stimuli in a given set is analyzed. Relationships between individual differences in growth trajectories and general intelligence are examined (N = 209). An experimental task “Number of Dots” designed to study the speed of enumeration and a verbal reaction recording technique used for registration of individual response times are described in details. Different methods of analysis of individual growth trajectories such as non-linear regression analysis and structural equation modeling with fixed links between manifest and latent variables are demonstrated. Basic time of enumeration is shown to be weakly negatively correlated with general intelligence whereas a parameter describing intensity of response-time growth with an increase in the number of stimuli in a set is highly negatively correlated with general intelligence. Perspectives of studying of individual differences in the speed of quantity processing are discussed in context of the observed relationships between the enumeration speed and general intelligence.

Keywords: intelligence, enumeration, processing speed, latent growth modeling, structural equation modeling

Fig.1. Examples of the sets of dots used as stimuli in the Number of Dots Test.

Extraction of individual response times based on the graphical representation of the waveform.

Fitting of individual results and calculation of the integral parameter S.

Table 1
Descriptive statistics and correlations for the individual parameters of approximation

Parameter Descriptive statistics, ms Correlations
between the parameters
with intelligence score
Mean Standard deviation k b S
a 98,95 39,53 –0,836
k 1,574 0,243   0,142
b 501,59 59,80     0,087
S 5418,02 1083,67       –0,520
Note. Pearson's correlation coefficients are presented; exact values of p-level are shown in the second row in brackets.
* – partial correlation coefficient, controlled for the parameter k;
** – partial correlation coefficient, controlled for the parameter a.

Fig. 4.
Latent analysis of response-time growth with increasing number of dots.

Cyrillic letters are transliterated according to BSI standards.

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Received 3 March 2011. Date of publication: 15 April 2011.

About author

Dodonov Yury S. Research Fellow, Moscow City University of Psychology and Education, ul. Sretenka, 29, 127051 Moscow, Russia.
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APA Style
Dodonov, Y. S. (2011). General intelligence and speed of enumeration. Psikhologicheskie Issledovaniya, 2(16). Retrieved from 0421100116/0015. [in Russian, abstr. in English].

Russian State Standard GOST P 7.0.5-2008
Dodonov Y.S. General intelligence and speed of enumeration [Electronic resource] // Psikhologicheskie Issledovaniya. 2011. N 2(16). URL: (date of access: 0421100116/0015. [in Russian, abstr. in English]

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