Baby Rolf first demonstrated the ability to kick and reach, then learned to rock on all fours, and later combined the skills to crawl. Rolf is exhibiting evidence of
A) dynamic systems theory of motor development.
B) the cephalocaudal trend.
C) the proximodistal trend.
D) a built-in maturational timetable.
A
Psychology
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Allport believed that personality traits are often revealed spontaneously through:
a. introspection. c. coping behavior. b. Freudian slips. d. expressive behavior.
Psychology
Thorndike emphasized that we learn mainly from _______
a. errors b. repeated trials c. success d. social experiences
Psychology
Lykken and Tellegan proposed the measure of ______, the idea that most people have an average level of happiness.
A. a set point B. an evolutionary average C. eudaimonia D. an hereditability index
Psychology
In the case of stuttering, genetic factors do not appear play an important role
Indicate whether the statement is true or false
Psychology