EPPP Developmental Psychology UPDATED
ACTUAL Questions and CORRECT
Answers
critical period - CORRECT ANSWER - a specific time during an organism's life span
when it is most sensitive to environmental influences or stimulation; a specific phenomenon
must occur during a critical period or it won't happen at all (e.g., formation of certain organs
during the embryonic stage)
sensitive period - CORRECT ANSWER - stimulation and learning has more of an impact
during this period than it will at any other time (e.g., kids learn language most easily from age 1-
3 years but can still develop language later)
Klinefelter's syndrome - CORRECT ANSWER - occurs only in men and results from an
extra X chromosome (XXY); tend to be taller, less intelligent, have abnormal development of
secondary sex characteristics, and unable to have children
Turner's syndome - CORRECT ANSWER - occurs only in women and results from a
missing X chromosome (X0); normal intelligence but abnormal development of secondary
sexual characteristics (e.g., no menstruation, no ovulation)
Down syndrome - CORRECT ANSWER - trisomy 21; 3 chromosomes on chromosome
21; characterized by intellectual disability, broad skyll, physical deformities, and reduced activity
hemophilia - CORRECT ANSWER - sex-linked recessive disorder that causes excessive
bleeding; found predominantly in males; requires frequent transfusion of blood with clotting
factors
sickle-cell anemia - CORRECT ANSWER - autosomal recessive disorder that occurs in
1/500 African Americans; results in deformed, fragile red blood cells that can clog blood vessels,
causing anemia, severe pain, stunted growth, and frequent infections
, germinal period - CORRECT ANSWER - stage 1 of prenatal period; conception until 2
weeks; zygote rapidly divides and ultimately implants itself onto the uterus wall
embryonic period - CORRECT ANSWER - stage 2 of prenatal period; 2 weeks until 8-12
weeks; start and rapid development of major organ systems and structures; embryo is most
vulnerable to teratogenic agents in the first 8-12 weeks
fetal period - CORRECT ANSWER - 3rd stage of prenatal period; 8-12 weeks until birth;
rapid growth, with organs and other systems developing more complexity
moro reflex - CORRECT ANSWER - infant reflex in which the baby extends the legs,
arms, and fingers, and arches the back in response to being startled
rooting reflex - CORRECT ANSWER - baby turns the head, opens the mouth, and begins
sucking movements in response to its cheek being stroked
Babinski reflex - CORRECT ANSWER - baby spreads out the toes and twists the foot in
response to the sole of its foot being stroked
proliferation stage - CORRECT ANSWER - 1st stage of brain development; new cells are
created within the neural tube; embryo is 2-3 weeks old
migration stage - CORRECT ANSWER - 2nd stage of brain development; immature
neurons migrate to specific brain locations and start to join other neurons to form brain
structures; embryo is 8 weeks old
differentiation stage - CORRECT ANSWER - 3rd stage of brain development; neurons
begin to take on a more differentiated or distinct look, developing axons and dendrites
myelination - CORRECT ANSWER - 4th stage of brain development; myelin sheath is
developed around the axons of some neurons; most myelination takes place after birth
ACTUAL Questions and CORRECT
Answers
critical period - CORRECT ANSWER - a specific time during an organism's life span
when it is most sensitive to environmental influences or stimulation; a specific phenomenon
must occur during a critical period or it won't happen at all (e.g., formation of certain organs
during the embryonic stage)
sensitive period - CORRECT ANSWER - stimulation and learning has more of an impact
during this period than it will at any other time (e.g., kids learn language most easily from age 1-
3 years but can still develop language later)
Klinefelter's syndrome - CORRECT ANSWER - occurs only in men and results from an
extra X chromosome (XXY); tend to be taller, less intelligent, have abnormal development of
secondary sex characteristics, and unable to have children
Turner's syndome - CORRECT ANSWER - occurs only in women and results from a
missing X chromosome (X0); normal intelligence but abnormal development of secondary
sexual characteristics (e.g., no menstruation, no ovulation)
Down syndrome - CORRECT ANSWER - trisomy 21; 3 chromosomes on chromosome
21; characterized by intellectual disability, broad skyll, physical deformities, and reduced activity
hemophilia - CORRECT ANSWER - sex-linked recessive disorder that causes excessive
bleeding; found predominantly in males; requires frequent transfusion of blood with clotting
factors
sickle-cell anemia - CORRECT ANSWER - autosomal recessive disorder that occurs in
1/500 African Americans; results in deformed, fragile red blood cells that can clog blood vessels,
causing anemia, severe pain, stunted growth, and frequent infections
, germinal period - CORRECT ANSWER - stage 1 of prenatal period; conception until 2
weeks; zygote rapidly divides and ultimately implants itself onto the uterus wall
embryonic period - CORRECT ANSWER - stage 2 of prenatal period; 2 weeks until 8-12
weeks; start and rapid development of major organ systems and structures; embryo is most
vulnerable to teratogenic agents in the first 8-12 weeks
fetal period - CORRECT ANSWER - 3rd stage of prenatal period; 8-12 weeks until birth;
rapid growth, with organs and other systems developing more complexity
moro reflex - CORRECT ANSWER - infant reflex in which the baby extends the legs,
arms, and fingers, and arches the back in response to being startled
rooting reflex - CORRECT ANSWER - baby turns the head, opens the mouth, and begins
sucking movements in response to its cheek being stroked
Babinski reflex - CORRECT ANSWER - baby spreads out the toes and twists the foot in
response to the sole of its foot being stroked
proliferation stage - CORRECT ANSWER - 1st stage of brain development; new cells are
created within the neural tube; embryo is 2-3 weeks old
migration stage - CORRECT ANSWER - 2nd stage of brain development; immature
neurons migrate to specific brain locations and start to join other neurons to form brain
structures; embryo is 8 weeks old
differentiation stage - CORRECT ANSWER - 3rd stage of brain development; neurons
begin to take on a more differentiated or distinct look, developing axons and dendrites
myelination - CORRECT ANSWER - 4th stage of brain development; myelin sheath is
developed around the axons of some neurons; most myelination takes place after birth
