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.
Which of the following statements is true about attachment security and later
development?
A) Children with mixed histories of attachment and maternal sensitivity tend to be
physically and cognitively delayed.
B) Children with disorganized/disoriented attachment tend to become securely attached
to at least one caregiver by middle childhood.
C) Mounting evidence indicates that continuity of caregiving determines whether
attachment security is linked to later development.
D) A secure father”child relationship is less important for long-term adjustment than a
secure mother”child relationship.
Which of the following statements is true about intermodal perception?