A comparative study of general intelligence in Spanish and Moroccan samples

The aim of this study is to fill a gap in intelligence research by presenting data for the average IQ in Morocco and for a comparable sample in Spain. Adult samples were administered the Raven Standard Progressive Matrices (SPM) (Raven, Court, & Raven, 2001) and scored for the total test and for the three sub-factors of gestalt continuation, verbal-analytical reasoning and visuospatial ability identified by Lynn, Allik, and Irwing (2004). The total test and the three factors have shown satisfactory reliability. Our results for the Moroccan sample show significant relationship between general intelligence factor, gestalt continuation and visuospatial ability with education level and income. Conversely, these variables have been shown to be independent for the Spanish sample. This sample obtained significantly higher scores for the four factors assessed than the Moroccan one. These differences have been found also comparing samples with the same education levels. Finally, the errors percentage for Moroccans has been higher than for Spaniards in all the items, suggesting that the level of difficulty was higher for the Moroccan sample.     

Associations of transcranial doppler velocity,age, and gender with cognitive function in children with sickle cell anemia in Nigeria

Children with sickle cell anemia (SCA) have elevated cerebral blood velocity relative to healthy peers. The primary aim of this study was to evaluate the association between cerebral blood velocity, measured by transcranial Doppler (TCD) ultrasound, age, and gender with cognitive function in children with SCA in Nigeria. Eighty-three children (M_age = 9.10, SD = 1.90 years; 55% female) with SCA in Nigeria completed cognitive assessments and a TCD ultrasound. The association between TCD velocity and measures of perceptual reasoning (Raven’s Progressive Matrices), working memory (WISC-IV Digit Span), and executive planning (Tower of London, TOL) were assessed. Results showed that elevated TCD velocity significantly predicted lower scores on TOL Time Violations and Total Problem-Solving Time when controlling for BMI, hemoglobin level, and parent education, suggesting that TCD velocity is related to the efficiency of executive function. Further, age was negatively related to children’s performance on the Ravens Matrices and TOL Total Correct, and boys showed greater deficits on the TOL Total Correct relative to girls. Moderation analyses for gender showed that there was a conditional negative association between TCD velocity and Digit Span for boys, but not for girls. Findings suggest that children with SCA in Nigeria with elevated TCD velocity are at risk for deficits in efficiency of executive planning, and boys with elevated TCD velocity are particularly at increased risk for deficits in auditory working memory. Implications of this study are important for interventions to reduce cerebral blood velocity and the use of TCD in this population.     

Traits and Roles in Gender Stereotypes: A Comparison between Moroccan and Spanish Native Samples

This study examines gender role attitudes and attitudes toward “man” and “woman” in two native samples from Spain and Morocco. The samples were made up of 400 participants, 200 in each country, containing the same number of men and women and selected with a similar procedure. We expected differences based on the independent variables of nationality, gender and educational level. The Spanish sample, female and student participants were predicted to present more egalitarian gender role attitudes and more positive attitudes toward “woman” than participants in the Moroccan sample, male and non-student participants. Overall MANOVAs were used to show the differences in gender role attitudes and attitudes toward “man” and “woman”. Results confirmed the role of the nationality variable in the expected way. The Spanish sample showed a more egalitarian view and more favorable attitudes toward “woman” than the Moroccan one. Educational level and gender showed significant effects on the Moroccan sample but only partially. Moroccan student females and non-student males presented a more egalitarian view than non-student females and student males respectively.     

Developments in the Measurement of Subjective Well-Being and Poverty: An Economic Perspective

Drawing on unique survey data for rural Pakistan, we estimate a happiness model to explore to what extent an economic perspective adds to our understanding of subjective wellbeing poverty. The data elicits information on subjective well-being in general and particularly on financial well-being in terms of household’s happiness with the current income or expenditure. We find that the well-being approach closely depicts the idea of well-being poverty in terms of the level education, health and income which matter significantly. Moreover unlike developed nations this study suggests a positive impact of children on well-being and poverty due to their productive contribution. As studies employing good data from developing countries are rare, this paper can potentially make a good contribution to the existing happiness literature, with special reference to Pakistan. Secondly, it brings new and strong empirical evidence to alternative approaches to subjective well-being poverty.