1. according to piaget, in which of the sensorimotor stage's substage do
infants experiment with toys, such as by playing with an object in different
ways?: tertiary circular reactions
2. which of the following sensorimotor substages occurs last, according to
Piaget: Primary circular reactions, tertiary circular reactions, or coordination
of secondary circular reactions
A. primary circular reactions
B. tertiary circular reactions
C. coordination of secondary circular reactions: B. tertiary circular reactions
3. Baby fat usually peaks at months of age.: nine
4. the reflex involves a baby turning her head when her cheek is touched-
: rooting
mailto:https://www.stuvia.com/en-us/user/techgrades 1/
18
,mailto:https://www.stuvia.com/user/techgrades
5. T/F infancy is one of the most rapid periods of development across the
lifespan: true
6. REM stands for rapid eye : movement
7. T?F two year olds weigh, on average, about 30 pounds: true
8. T/F early in life, infants have far more neural connections than they need: -
true
9. T/F gross motor skills generally develop before fine motor skills: true
10. T/F Piaget emphasized the role of the individual in constructing knowl-
edge: true
11. 18-month-old Marta was really upset when her mom left in the morning
for work and cried for a long time at daycare. However, Marta doesn't seem
very happy to see mom when she returns. She doesn't hug her back when
she tries to hug her while picking her up. Instead, she just grabs onto her leg
and stands there while she waits to leave. With what attachment style would
Ainsworth most likely classify Marta?: anxious-ambivalent
12. how is an infant's achievement of object permanence related to her ability
to bond with her parents?: needs to be able to remember parents in order to attach
13. the reflex can be observed when infants make stepping motions
when help above a table or other surface: stepping
14. the reflex can be observed when adult places her finger in an
infant's palm, and the infant immediately closes his fingers around the adult
mailto:https://www.stuvia.com/en-us/user/techgrades 2/
18
,mailto:https://www.stuvia.com/user/techgrades
finger: grasping
15. T/F the palmer grasp is usually pretty flaccid and weak: false
16. which of the following sensorimotor substages occurs first according to
Piaget
A. secondary circular
mailto:https://www.stuvia.com/en-us/user/techgrades 3/
18