Investigations of interracial adoption and IQ have revealed that African American children reared in economically advantaged White households showed an overall ____________________ in IQ relative to the national average for African American children. This finding supports the proposal that observed differences in IQ scores between various racial and ethnic groups are a result of environment
Fill in the blank(s) with correct word
increase
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Recurrent and persistent thoughts, impulses, or images that are experienced as intrusive and inappropriate and that cause marked anxiety or distress are called __________
Answer:
Fragile X syndrome is characterized by
a. an extra Y sex chromosome. b. an extra X sex chromosome. c. a missing X sex chromosome. d. an abnormality on the X sex chromosome.
Which of the following is true of the last stage of circuit pruning?
A. Growth cones guide neurons to their final destination. B. The Robo1 gene influences the direction in which axons grow. C. The plasticity of neural connections begins to decrease. D. The plasticity of neural connections begins to increase.
Evidence from patients with anterograde amnesia suggests that the role of the hippocampus is to a. serve as a storage location for declarative memories
b. serve as a storage location for procedural memories. c. assist in the retrieval of memories stored in other locations. d. transfer information from short-term memory into long-term memory.