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Background: Understanding individual differences in psychology, and how they relate to specific addictions, may allow society to better identify those at most risk and even enact policies to ameliorate them. Internet addiction is a growing health concern, a research focus of which is to understand individual differences and the psychology of those most susceptible to developing it. Western countries are strongly overrepresented in this regard. Method: Here, sex and national differences in internet addiction are measured, using Young's ‘Internet Addiction Test,’ in two non-Western countries, Egypt and Saudi Arabia. >800 students aged 18 and 35 years (M = 20.65, SD = 1.48) completed a multidimensional internet addiction instrument. The instrument measures traits such as Withdrawal and Social Problems, Time Management and Performance and Reality Substitute. Results: Analyses revealed that males scored higher than females and Saudis higher than Egyptians on nearly all scales, including the total score. Factor analysis of the 20-item instrument revealed three factors, all exhibiting sex and culture differences. Conclusions: These findings add to the body of evidence that males are higher than females in problematic internet use, as they are in addictive behaviors in general. Our findings may also imply that restrictions on male-female interaction, which are more pronounced in Saudi Arabia, may elevate the prevalence of internet addiction. The internet is also easier and cheaper to access in Saudi Arabia than in Egypt.

The Simber Effect refers to the phenomenon whereby, in Arabic countries, young children have an IQ that is little different from that of Western children but that these differences increase throughout childhood culminating in a difference of around 20 points by adulthood. The true nature of this phenomenon is revealed by an examination of 125 samples from all around the globe measured with Raven's Progressive Matrices. We show that in many cases different speeds of cognitive development increase the IQ score differences between countries mostly between 4 and 9 years of age, and that these increases can in part be explained by poor environmental conditions. However, the patterns are not completely clear, either in terms of regularity or strengths. Methodological problems, in particular the cross-sectional designs of the included samples, as well as the significance of the Simber Effect for country comparisons in intelligence are discussed.

Previous studies have suggested that a general factor exists at the top of the hierarchal structure of personality. One interpretation of this General Factor of Personality (GFP) is that it reflects social effectiveness. Accordingly, in a large employee sample (N = 1267), we tested whether the GFP relates to several outcomes assumed to be linked with social effectiveness. Specifically, we examine whether the GFP is positively related to salary and to obtaining a leadership position. Additionally, we test whether high-GFP employees more often work in social occupations. Controlling for demographics and background variables, it was found that the GFP is indeed positively related to monthly (gross) salary. Moreover, employees occupying leadership positions in organizations scored higher on the GFP. GFP scores of employees in more social occupations (e.g., education, health care) were higher than of employees in other types of jobs (e.g., construction). GFP scores were also positively associated with the extent to which one has to relate to others in the job. Overall, the pattern of findings is in line with the notion of the GFP as relating to social effectiveness or adaptiveness, which are assumed to play a significant role in occupational outcomes.

Performances on tests of creativity have been found to be in decline in the USA. Here, we explore scores on divergent thinking tests in private schools in Khartoum State in Sudan by comparing a 2005 and a 2018 administration of the Torrance Standardized Circles test to 8- to 12-year-olds of both sexes. We find a decline across the period in all three dimensions of the test (Fluency, Flexibility and Originality), as well as in the overall index of divergent thinking. In line with much previous research, females consistently outperform males. Examining previous studies that report Negative Flynn Effects on IQ in Arab countries, we conclude that our results most likely reflect highly localized and exclusively environmental causes, and caution against assuming that the same processes that underlie Negative Flynn Effects in the West, whether on IQ or any trait correlated with it, also underlie it in the Arab World.