When a very skewed distribution is involved,
a. use the mode because the most frequently occurring score will be the point around which most scores will be located.
b. use the median because it is more representative of most of the scores.
c. use the mean because it will best represent the extreme scores in the tail.
d. no measure of central tendency should be calculated.
b
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Which test procedure is recommended if either parent carries Tay-Sachs, spina bifida, sickle-cell, Down syndrome, muscular dystrophy, or Rh disease?
A. amniocentesis B. embryoscopy C. chorionic villus sampling (CVS) D. ultrasound
Due to social movements within the African American community, African American adolescents __________.
A. show few self-esteem differences when compared with white adolescents B. have lower self-esteem compared to white adolescents C. demonstrate a stronger sense of racial identity and a higher level of self-esteem when compared with Hispanics D. demonstrate a weaker sense of racial identity and a higher level of self-esteem when compared with Asian Americans
Which statement about the cause of sexual dysfunctions is accurate?
a. Recent studies indicate that biological and factors interact to cause the disorders. b. Masters and Johnson tended to deemphasize the importance of psychological factors. c. All primary forms of these disorders stem from a sociocultural basis. d. Recent studies show that biological factors sufficiently account for the disorders.
Beliefs, expectations, and goals are important concepts in which of the following theories of motivation?
A. instinct theory B. drive-reduction theory C. self-actualization D. cognitive theory