<em>African slavery was introduced to the Americans early on because of the needs of the country for laborers (for their farms). During these times, countries like France and Great Britain are in the country running different plantations. Americans are fighting them off, and some who they got caught in the warring times and some Africans whom they kidnapped from their homes were pushed to work for them in exchange for foods and accommodations. African slavery started in the 17th centuries and ended in 1863 when Abraham Lincoln made a proclamation of freeing all slaves in United States.</em>
They define your core traits
Answer:
practice effects
Explanation:
Based on the information provided within the question with regards to Leigh's experiment it can be said that her biggest concern should be practice effects. This term refers to the effects or changes that can occur when repeating the same experiment various times with the same participants. Which is what Leigh is doing, as she is only changing one variable but repeating the same experiment.
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He referred as a group of conditions that seemed to feature mental deterioration beginning in the early life.
Dementia praecox is a form of premature dementia (starts when a person hits puberty versus, this is also a form of schizophrenia).
