A property of a scale that implies the complete absence of the measured attribute is called a(n)
a. magnitude
b. absolute zero.
c. equal interval.
d. ratio.
b
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Dr. Hebda injects a large dose of the neurotransmitter glutamate into the brain of a living rat. What effect would this most likely have on the rat?
a. ?The rat will become much more intelligent. b. ?The rat will experience the death of many neurons. c. ?The rat will become very hungry. d. ?The rat will exhibit symptoms of schizophrenia.
Which of the following statements about attention-deficit hyperactivity disorder (ADHD) is true?
A) All children with ADHD are hyperactive.
B) Fraternal twins are more likely than identical twins to have ADHD.
C) Boys are diagnosed with ADHD two to three times as often as girls.
D) For a child to be diagnosed with ADHD, symptoms must appear before age 5.
Like Piaget, Vygotsky believed that children
a. learn through observation and reinforcement. b. actively seek to discover new principles. c. come into the world like "blank slates" to be written upon. d. must be grown like "plants in a hot house" to full bloom.
The standard treatment for delayed ejaculation disorder focuses on increasing_______
and reducing _________. a. sexual stimulation; performance anxiety b. monogamy; promiscuity c. attention; distraction d. testosterone levels; estrogen levels