Prenatal malnutrition ______
a. can lower IQ scores
b. has no effect on IQ scores c. results in low early IQ scores that almost always later increase to normal and above
normal levels
d. results in early high IQ scores that later decline to markedly lower-than-normal
levels
A
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Chapter 5 discusses some biological explanations that have been proposed to account for gender differences in cognitive ability. Which of the following statements is correct about these explanations?
a. Research has not supported a genetic explanation for gender differences. b. The term lateralization refers to the fact that the X chromosome is larger than the Y chromosome. c. In normal individuals, the left hemisphere is completely responsible for spatial tasks. d. People who have more complete lateralization show the best performance on cognitive tasks.
What research finding suggests that there is a biological component to the lower levels of emotional empathy in those diagnosed with antisocial personality disorder?
a. MRIs scans that indicated neurological differences in the prefrontal cortex and the limbic amygdala circuitry. b. DNA research that explores an extra X chromosome as a factor implicated in antisocial personality disorder. c. Research that investigates the relationship between brain damage and antisocial personality disorder. d. EEG studies that support the existence of abnormal brain activity in the brains of individuals diagnosed with antisocial personality disorder.
A child receives a dime for, on average, every 5 dandelions he pulls from the yard. This is an example of a schedule of reinforcement
a. fixed ratio b. variable ratio c. fixed interval d. variable interval e. continuous reinforcement
This is denoted by 
and is used to calculate the estimated standard error.
A. sample means B. pooled variance C. pooled means D. sample variance