CD 480 EXAM #3 QUESTIONS AND
ANSWERS GRADED A+ 2026
In the first 3 years of life, babies grow about ____ inches in one year. - ANS 12
In the first 3 years of life, babies became about ___ times as heavy in one year. - ANS 4
Newborn infants can see about ____ inches away. - ANS 7-15
What are some visual abilities that improve rapidly over the first year? - ANS preferences
(faces, patterns, blue/red), length of interest, tracking, scanning, depth and distance perception
Toddlers have difficulty with some vision-related tasks as a result of limited ability to
_________. - ANS direct gaze
What abilities in hearing development are developed by 26 weeks during the prenatal period? -
ANS increased heart rate and movement (sucking rate, limbs) at changes in pitch and
loudness, show alarm at sudden high-pitched noises, soothed by singing and heartbeats
What are some aspects of hearing development in newborns? - ANS will attend to high-
pitched (female) voices especially own mother, other infants' crying, singing, differences among
sounds and tone of voice; will orient head and eyes towards sound
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,When do the senses of taste and smell develop? - ANS before birth
The sense of _____ guides newborn feeding. - ANS smell
When does the sense of touch develop? - ANS before birth
What is involved in infant development of the sense of touch? - ANS parental touch
communicates and soothes, this is how babies learn, the can tell difference between textures
and touch on different parts of body, feel pain
By age ____ children have as many synapses as an adult. - ANS 2
By age ____ children have twice as many synapses as adults. - ANS 3
What percentage of brain development happens before age 3? - ANS 80%
These factors matter in successful intervention in the child's development. - ANS repetition,
intensity, time/duration, age, generalization
__________ is the most powerful influence on brain development. - ANS caregiver
attachment
_____ (%) of an infant's learning involves vision. - ANS 80%
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, What are some common impairments in children with Down Syndrome? - ANS motor delays,
cataracts, physical malformations, weak muscle tone, large protruding tongue, hearing loss
What are some common impairments in children with cerebral palsy? - ANS blindness,
deafness, motor impairments
What are some common impairments in children with Fragile X Syndrome? - ANS gross
motor and speech delays
What are the sensorimotor substages? (Piaget) - ANS reflexive schemes, primary circular
reactions, secondary circular reactions, coordination of secondary circular reactions, tertiary
circular reactions, mental combinations
What is the first substage of sensorimotor cognitive development? - ANS reflexive schemes
(birth-1 month)
When does the reflexive schemes substage occur? - ANS birth-1 month
In this substage of sensorimotor cognitive development, the infant responds to its environment
with involuntary reflexes. - ANS reflexive schemes
When does the primary circular reactions substage occur? - ANS 1-4 months
In this substage of sensorimotor cognitive development, the infant engages in repeated simple
motor habits centered around its own body because they are pleasurable. The actions are
intentional, but there is there is no understanding of cause and effect.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
ANSWERS GRADED A+ 2026
In the first 3 years of life, babies grow about ____ inches in one year. - ANS 12
In the first 3 years of life, babies became about ___ times as heavy in one year. - ANS 4
Newborn infants can see about ____ inches away. - ANS 7-15
What are some visual abilities that improve rapidly over the first year? - ANS preferences
(faces, patterns, blue/red), length of interest, tracking, scanning, depth and distance perception
Toddlers have difficulty with some vision-related tasks as a result of limited ability to
_________. - ANS direct gaze
What abilities in hearing development are developed by 26 weeks during the prenatal period? -
ANS increased heart rate and movement (sucking rate, limbs) at changes in pitch and
loudness, show alarm at sudden high-pitched noises, soothed by singing and heartbeats
What are some aspects of hearing development in newborns? - ANS will attend to high-
pitched (female) voices especially own mother, other infants' crying, singing, differences among
sounds and tone of voice; will orient head and eyes towards sound
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
,When do the senses of taste and smell develop? - ANS before birth
The sense of _____ guides newborn feeding. - ANS smell
When does the sense of touch develop? - ANS before birth
What is involved in infant development of the sense of touch? - ANS parental touch
communicates and soothes, this is how babies learn, the can tell difference between textures
and touch on different parts of body, feel pain
By age ____ children have as many synapses as an adult. - ANS 2
By age ____ children have twice as many synapses as adults. - ANS 3
What percentage of brain development happens before age 3? - ANS 80%
These factors matter in successful intervention in the child's development. - ANS repetition,
intensity, time/duration, age, generalization
__________ is the most powerful influence on brain development. - ANS caregiver
attachment
_____ (%) of an infant's learning involves vision. - ANS 80%
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
, What are some common impairments in children with Down Syndrome? - ANS motor delays,
cataracts, physical malformations, weak muscle tone, large protruding tongue, hearing loss
What are some common impairments in children with cerebral palsy? - ANS blindness,
deafness, motor impairments
What are some common impairments in children with Fragile X Syndrome? - ANS gross
motor and speech delays
What are the sensorimotor substages? (Piaget) - ANS reflexive schemes, primary circular
reactions, secondary circular reactions, coordination of secondary circular reactions, tertiary
circular reactions, mental combinations
What is the first substage of sensorimotor cognitive development? - ANS reflexive schemes
(birth-1 month)
When does the reflexive schemes substage occur? - ANS birth-1 month
In this substage of sensorimotor cognitive development, the infant responds to its environment
with involuntary reflexes. - ANS reflexive schemes
When does the primary circular reactions substage occur? - ANS 1-4 months
In this substage of sensorimotor cognitive development, the infant engages in repeated simple
motor habits centered around its own body because they are pleasurable. The actions are
intentional, but there is there is no understanding of cause and effect.
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
3
