During his second year of life, Titus suffered a long and severe illness that left him well below his expected weight and height. After recovering from the illness, Titus suddenly experienced rapid gains in both height and weight. This event is best explained by
A. plasticity.
B. the proximodistal principle.
C. catch-up growth.
D. the secular trend.
Answer: C
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Which term describes the wariness displayed by infants when they encounter an unfamiliar person?
A. nonverbal decoding B. separation anxiety C. stranger anxiety D. social anxiety
Answer the following statement(s) true (T) or false (F)
Shared attention refers to the triadic interaction between two social partners and a third object.
A college student has volunteered to tutor students in a first-grade classroom. She hopes to gain a realistic picture of the everyday behavior of these students. However, every time she enters the classroom, the students all stop what they are doing and run up to her begging her to tutor them next. This student will probably never get a realistic picture of a typical first grader's school day
because of the a. observer bias. b. observer effect. c. self-fulfilling prophecy. d. anthropomorphic error.
Which scientist conducted the first psychological experiment?
A. Edward Titchener B. Wilhelm Wundt C. Sigmund Freud D. B.F. Skinner