The human population doubled from 1 to 2 billion between 1800 and 1930. What led to this increase in population?

a. government-controlled farming
b. globalization and shared resources
c. medical advances that eliminated many diseases
d. people had more children

Answer: C

Psychology

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A) objectivity B) reliability C) validity D) generalizability

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The correlation between amount of TV violence watched and aggressiveness is

about (a) 0 (b) .25 (c) .50 (d) .75 (e) 1.00

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