PSYC 140 Developmental (Lifespan)
Psychology Practice Exam 2026/2027 –
Complete Exam-Style Questions with Correct
Answers & Detailed Rationales | Verified &
Reliable
Question 1
A developmental psychologist describes development as
lifelong, multidimensional, multidirectional, plastic, and
influenced by multiple interacting contexts. Which conclusion is
most consistent with this perspective?
A. Development is primarily determined by biological
maturation during childhood.
B. Development follows one predictable pattern that is largely
complete by adulthood.
C. Development involves gains and losses that can vary across
domains and change across the lifespan.
D. Developmental changes are largely independent of historical
and cultural circumstances.
The correct answer is C because the lifespan perspective
recognizes that development continues throughout life and can
,involve simultaneous gains and losses. Cognitive, physical,
social, and emotional domains may develop at different rates,
while plasticity means that some developmental pathways can
be modified by experience. A and B incorrectly restrict
development to childhood or assume a uniform trajectory. D
overlooks the influence of culture, historical period, and
environmental context.
Question 2
A researcher compares the behavior of children who are 4, 8,
and 12 years old at one point in time. Which research design is
being used?
A. Longitudinal
B. Cross-sectional
C. Sequential
D. Experimental
The correct answer is B because a cross-sectional design
compares individuals from different age groups at the same
point in time. A longitudinal study would follow the same
individuals across time. A sequential design combines elements
of cross-sectional and longitudinal approaches, while an
experiment requires systematic manipulation of an independent
variable.
Question 3
,A longitudinal study begins with a group of adolescents and
assesses them every two years for 20 years. Which problem is
especially relevant to this design?
A. It cannot examine developmental change.
B. It prevents researchers from examining individual
differences.
C. Participant attrition can reduce the representativeness of
the final sample.
D. Age-related change cannot be distinguished from cohort
effects.
The correct answer is C because longitudinal studies can lose
participants through relocation, withdrawal, illness, or other
circumstances. If attrition is systematic, the remaining sample
may differ meaningfully from those who dropped out.
Longitudinal research is specifically designed to examine
developmental change. Cohort effects are particularly
problematic when comparing different generations, whereas
the question describes following one cohort.
Question 4
Which statement best illustrates the interaction between
nature and nurture?
A. A child's temperament is determined entirely by inherited
genes.
, B. Parenting practices completely determine personality
development.
C. Genetic predispositions can influence how a person
responds to environmental experiences.
D. Environmental influences matter only when genetic
influences are absent.
The correct answer is C because contemporary developmental
science views heredity and environment as dynamically
interacting. Genetic characteristics can influence how
individuals respond to their environments, while experiences
can influence developmental expression. A and B are overly
deterministic. D falsely treats biological and environmental
influences as mutually exclusive.
Question 5
A pregnant individual is exposed to a substance known to
interfere with fetal development. The effect is most
appropriately described as involving a:
A. genotype
B. phenotype
C. teratogen
D. reflex
The correct answer is C. A teratogen is an environmental agent
that can negatively affect prenatal development, potentially
Psychology Practice Exam 2026/2027 –
Complete Exam-Style Questions with Correct
Answers & Detailed Rationales | Verified &
Reliable
Question 1
A developmental psychologist describes development as
lifelong, multidimensional, multidirectional, plastic, and
influenced by multiple interacting contexts. Which conclusion is
most consistent with this perspective?
A. Development is primarily determined by biological
maturation during childhood.
B. Development follows one predictable pattern that is largely
complete by adulthood.
C. Development involves gains and losses that can vary across
domains and change across the lifespan.
D. Developmental changes are largely independent of historical
and cultural circumstances.
The correct answer is C because the lifespan perspective
recognizes that development continues throughout life and can
,involve simultaneous gains and losses. Cognitive, physical,
social, and emotional domains may develop at different rates,
while plasticity means that some developmental pathways can
be modified by experience. A and B incorrectly restrict
development to childhood or assume a uniform trajectory. D
overlooks the influence of culture, historical period, and
environmental context.
Question 2
A researcher compares the behavior of children who are 4, 8,
and 12 years old at one point in time. Which research design is
being used?
A. Longitudinal
B. Cross-sectional
C. Sequential
D. Experimental
The correct answer is B because a cross-sectional design
compares individuals from different age groups at the same
point in time. A longitudinal study would follow the same
individuals across time. A sequential design combines elements
of cross-sectional and longitudinal approaches, while an
experiment requires systematic manipulation of an independent
variable.
Question 3
,A longitudinal study begins with a group of adolescents and
assesses them every two years for 20 years. Which problem is
especially relevant to this design?
A. It cannot examine developmental change.
B. It prevents researchers from examining individual
differences.
C. Participant attrition can reduce the representativeness of
the final sample.
D. Age-related change cannot be distinguished from cohort
effects.
The correct answer is C because longitudinal studies can lose
participants through relocation, withdrawal, illness, or other
circumstances. If attrition is systematic, the remaining sample
may differ meaningfully from those who dropped out.
Longitudinal research is specifically designed to examine
developmental change. Cohort effects are particularly
problematic when comparing different generations, whereas
the question describes following one cohort.
Question 4
Which statement best illustrates the interaction between
nature and nurture?
A. A child's temperament is determined entirely by inherited
genes.
, B. Parenting practices completely determine personality
development.
C. Genetic predispositions can influence how a person
responds to environmental experiences.
D. Environmental influences matter only when genetic
influences are absent.
The correct answer is C because contemporary developmental
science views heredity and environment as dynamically
interacting. Genetic characteristics can influence how
individuals respond to their environments, while experiences
can influence developmental expression. A and B are overly
deterministic. D falsely treats biological and environmental
influences as mutually exclusive.
Question 5
A pregnant individual is exposed to a substance known to
interfere with fetal development. The effect is most
appropriately described as involving a:
A. genotype
B. phenotype
C. teratogen
D. reflex
The correct answer is C. A teratogen is an environmental agent
that can negatively affect prenatal development, potentially
