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Experimental psychology refers to work done by those who apply experimental methods to psychological study and the underlying processes. Experimental psychologists employ human participants and animal subjects to study a great many topics, including (among others) sensation, perception, memory, cognition, learning, motivation, emotion; developmental processes, social psychology, and the neural ...
In August 2008, the World Bank [197] announced revised global poverty estimates based on a new international poverty line of $1.25 per day (versus the previous measure of $1.00). Eighty-one percent of the sub-Saharan African population was living on less than $2.50 (PPP) per day in 2005, compared with 86% for India.
It covers about 4,500,000 km 2 (1,700,000 sq mi), which is 8% of Eurasia and 3% of Earth's total land area. Its total population is more than 675 million, about 8.5% of the world's population. It is the third most populous geographical region in Asia after South Asia and East Asia. [8]