Author Question: In two investigations, African-American children adopted into economically well-off white homes ... (Read 127 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
In two investigations, African-American children adopted into economically well-off white homes during the first year of life __________.
 
  A) scored low on intelligence tests during middle childhood
  B) attained mean IQs of 110 and 117 by middle childhood
  C) scored mean IQs of below 95 in middle childhood
  D) showed gains in IQ in early childhood, which dropped by adolescence

Question 2

Adoption studies reveal that __________.
 
  A) adopted children show a significant decline in IQ across middle childhood and adolescence, regardless of rearing conditions
  B) children of low-IQ biological mothers adopted at birth by parents who are well above average in income and education do as well as children of high-IQ biological mothers placed in similar adoptive homes
  C) genetic factors play a much greater role in IQ than environmental factors but have been overlooked in heritabilities, which typically underestimate genetic influences
  D) children of low-IQ biological mothers adopted at birth by parents who are well above average in income and education score above average in IQ during the school years



lucas dlamini

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

For a complete list of videos, visit our video library