A researcher conducts a 2 × 3 mixed factorial design, with the first factor being the between-subjects factor. If 15 participants are observed at each level of the between-subjects factor, then how many total participants were observed?
A. 15
B. 30
C. 45
D. 90
Answer: B
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Which maternal behavior places an infant at risk for sudden infant death syndrome?
a. Smoking cigarettes b. Alcohol consumption c. Exposure to rubella d. Using Thalidomide
Regarding emotional expressions, which statement is FALSE?
A) Congenitally blind people exhibit deficits in emotional expression. B) Newborn infants exposed to a bitter taste make a face of disgust. C) People are quite accurate at judging the emotional expressions of members of other cultures. D) Preliterate cultures are just as accurate at gauging emotional expression as are literate cultures.
Why do adults become more susceptible to disease as they age?
A) Fewer antibodies are produced and T cells become less efficient. B) More B cells and T cells are produced than can be absorbed by the bone marrow and the thymus gland. C) The thymus gland and the bone marrow produce antibodies that attack normal body cells. D) The thymus gland becomes excessively large and interferes with the production of B cells.
Tests standardized on adults that emphasize basic skills in reading, mathematics, and language
are known as __________ tests. A) basic educational abilities B) practical attainment C) job qualification skills D) general educational development