An intervention study was conducted on a group of 20 under-privileged children to see if environmental enrichment would improve their intelligence levels. At the age of three years, the children who were all from impoverished and overcrowded homes, began the intervention program, attending a special non-residential day school in which particular emphasis was placed on the development of social and cognitive skills. The children attended the school for 4 days per week until they began infant school.
What is the hypothesis of this experiment?
What is the independent variable?
What is the dependent variable?
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