When the results of an experiment can confidently be attributed to the effect of the independent variable, the experiment is said to have
A. construct validity.
B. content validity.
C. external validity.
D. internal validity.
Answer: D
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Which condition is considered the most extreme case of prematurity?
A. small-for-gestational-age infants B. very-low-birthweight infants C. preterm infants D. low-birthweight infants
Lack of funds can lead students to
a. live at home. b. be less at risk for dropping out of college. c. work more hours at jobs. d. both live at home and work more hours.
Imagine that you are in Paris in 1775 . People tell you their physical and mental health is remarkably improved when they experience a strange sleeplike trance. Later, you hear that the man who performed these remarkable cures was investigated and forced to leave Paris. What forerunner of hypnosis were the people of Paris discussing?
a. catharsis b. mesmerism c. exorcism d. trephining
Kochanska's integrative theory of attachment states that attachment depends on the
a. parents' quality of caregiving. b. infant's own type of temperament. c. personalities of others in the home and also of pets. d. parental caregiving and also on the baby's temperament.