The median is calculated by
a. adding the individual values of the sample and dividing by the number of observations.
b. arranging all scores in numerical order and finding the midpoint.
c. subtracting the lowest score from the highest score.
d. subtracting each score from the mean and then squaring the differences.
e. taking the square root of the variance.
b. arranging all scores in numerical order and finding the midpoint.
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All of Paulo and Geneva's children have moved away, started families and begun working on their careers. According to the text, Paulo and Geneva's home is now an "empty nest."
Indicate whether this statement is true or false.
According to the text, which of the following is the most accurate statement about typical fathers in contemporary Western cultures?
a. Fathers are playing increasingly smaller roles in child care, as more children are being cared for in daycare environments. b. Fathers can be as responsive to their infant's cues as can mothers. c. Fathers are as loving as mothers, but infants have a harder time forming attachments to their fathers regardless of their father's parenting style. d. Infants generally experience considerably more separation anxiety when they are cared for by their fathers.
The outer surface of the cortex consists of gray matter
Indicate whether the statement is true or false
Based on Jenkins & Moore's experiment on autoshaping, the fact that pigeons peck a key differently when the reinforcer is food as opposed to water is most readily explained in terms of:
A) ?adjunctive processes. B) ?the behavioral bliss point approach. C) ?Pavlov's stimulus-substitution theory. D) ?the response deprivation hypothesis.