Examlex
Six-year olds who were randomly assigned to music lessons showed a gain of 10 to 20 IQ points, on the average, compared to other children.
Classes
Social categories reflecting differences in economic status, lifestyle, education, and occupational prestige among various groups within a society.
Apartheid System
A policy or system of segregation or discrimination on grounds of race, specifically referring to the former socio-political system in South Africa.
Social Stratification
The arrangement or classification of society into hierarchical layers based on socioeconomic factors like wealth, income, race, education, and power.
Income Inequality
The unequal distribution of income among individuals or households within a particular society or area.
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