When the mean is lower than the median, it means that there are some extreme scores with _____ values
a. high c. unknown
b. low d. typical
B
The mean is "pulled" in the direction of the extreme scores. The median is unaffected by them.
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Imagine a test that determines your IQ score by this formula: Length of head divided by width of head multiplied by 100 . What, if anything, can we predict about this test?
a. It will have high reliability and high validity. b. It will have high reliability and low validity. c. It will have low reliability and low validity. d. We can make none of these predictions.
Dizyotic twins exposed to the same teratogens during pregnancy may experience
enhanced bonding due to shared trauma. different effects of the teratogens. no effects of the teratogens since the twins protect each other. amplified effects of the teratogens since there are two fetuses.
Two good examples of behavior that lead to immediate rewards but that are punishing in the long run are:
a. alcoholism and painting pictures b. overeating and alcoholism c. sex and mature love d. overeating and learning to play the piano
According to this theory, the essential properties of a system arise from the relationships among the parts.
a. the family life cycle b. constructivism c. feminism d. systems theory