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An Increase of Intelligence in Saudi Arabia, 1977-2010
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Batterjee, Adel A.; Khaleefa, Omar; Ali, Khalil; Lynn, Richard – Intelligence, 2013
Normative data for 8-15 year olds for the Standard Progressive Matrices in Saudi Arabia were obtained in 1977 and 2010. The 2010 sample obtained higher average scores than the 1977 sample by 0.78d, equivalent to 11.7 IQ points. This represents a gain of 3.55 IQ points a decade over the 33 year period. (Contains 1 table.)
Descriptors: Foreign Countries, Intelligence, National Norms, Intelligence Quotient
Are Cross-National Differences in IQ Profiles Stable? A Comparison of Finnish and U.S. WAIS Norms
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Roivainen, Eka – International Journal of Testing, 2013
To study the concept of national IQ profile, we compared U.S. and Finnish WAIS, WAIS-R, and WAIS III nonverbal and working memory subtest norms. The U.S. standardization samples had consistently higher scores on the Coding and Digit span subtests, while the Finnish samples had higher scores on the Block design subtest. No stable cross-national…
Descriptors: Intelligence Tests, Profiles, Cultural Influences, Nonverbal Tests
Effects of Parental Education Level on Fluid Intelligence of Philippine Public School Students
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Vista, Alvin D.; Grantham, Tarek C. – Journal of Psychoeducational Assessment, 2010
This study examines the effect of parental education levels (PELs) on the fluid intelligence of Filipino public school students. The data were drawn from a normative study of a nonverbal intelligence test involving more than 2,700 students sampled across the country. As expected, PELs have a significant impact on fluid intelligence as measured…
Descriptors: Intelligence, Parent Background, Educational Attainment, Nonverbal Tests
The Relationship between Nonverbal Cognitive Functions and Hearing Loss
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Zekveld, Adriana A.; Deijen, Jan Berend; Goverts, S. Theo; Kramer, Sophia E. – Journal of Speech, Language, and Hearing Research, 2007
Purpose: This study investigated the relationship between hearing loss and memory and attention when nonverbal, visually presented cognitive tests are used. Method: Hearing loss (pure-tone audiometry) and IQ were measured in 30 participants with mild to severe hearing loss. Participants performed cognitive tests of pattern recognition memory,…
Descriptors: Cognitive Tests, Pattern Recognition, Nonverbal Tests, Intelligence Quotient
Developmental Gender Differences on the Naglieri Nonverbal Ability Test in a Nationally Normed Sample of 5-17 Year Olds
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Rojahn, Johannes; Naglieri, Jack A. – Intelligence, 2006
Lynn [Lynn, R., 2002. Sex differences on the progressive matrices among 15-16 year olds: some data from South Africa. "Personality and Individual Differences 33," 669-673.] proposed that biologically based developmental sex differences produce different IQ trajectories across childhood and adolescence. To test this theory we analyzed the…
Descriptors: Gender Differences, Nonverbal Ability, Intelligence Quotient, Children
Nutritional Status and Performance in Test of Verbal and Non-Verbal Intelligence in 6-Year- Old Children
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Arija, Victoria; Esparo, Griselda; Fernandez-Ballart, Joan; Murphy, Michelle M.; Biarnes, Elisabeth; Canals, Josefa – Intelligence, 2006
The relationship between nutritional status and intellectual capacity in 6-year-old children was investigated in 83 subjects of medium-high socio-economic status, without any apparent risk of malnutrition and normal or high intellectual capacity. Nutritional status was evaluated by measuring food consumption, anthropometrical measurements and…
Descriptors: Young Children, Nutrition, Intelligence Quotient, Verbal Ability