Page 1 of 90
DEVELOPMENTAL PSYCHOLOGY INFANCY AND
CHILDHOOD EXAM WITH VERIFIED ANSWERS DETAILED
RATIONALES GRADED A+
DOMAIN 1: INTRODUCTION TO DEVELOPMENTAL PSYCHOLOGY AND RESEARCH STRATEGIES
1. Developmental psychology is best defined as the scientific study of:
A) How people change physically only
B) The systematic continuities and changes in an individual from conception to death
C) Only childhood behaviour
D) The treatment of psychological disorders
Rationale: Developmental psychology is the scientific study of systematic continuities and
changes in individuals across the lifespan, from conception to death, encompassing physical,
cognitive, and social-emotional domains.
2. The nature vs. nurture debate in developmental psychology concerns:
A) Whether development is continuous or discontinuous
B) The relative contributions of genetic inheritance (nature) and environmental experience
(nurture) to development
C) Whether children are inherently good or bad
D) Whether development is stable or changeable
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,Page 2 of 90
Rationale: The nature vs. nurture debate addresses how genetic (nature) and experiential
(nurture) factors influence development. Most developmentalists now recognize that both
interact dynamically.
3. A researcher who believes that development occurs in distinct, qualitative stages adheres
to which viewpoint?
A) Continuous development
B) Discontinuous (stage) development
C) Nature perspective
D) Nurture perspective
Rationale: The discontinuous (stage) view holds that development involves distinct, qualitative
changes that occur in a specific sequence, like the stages proposed by Piaget and Erikson.
4. The stability vs. change issue in developmental psychology asks:
A) Whether development is influenced by nature or nurture
B) Whether early personality traits persist through life or are subject to change
C) Whether development is continuous or stage-like
D) Whether development occurs in one domain at a time
Rationale: The stability vs. change issue addresses whether characteristics present in infancy
remain stable across the lifespan or if later experiences can fundamentally change
developmental trajectories.
5. A researcher who follows the same group of children over a period of 10 years is
conducting a:
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A) Cross-sectional study
B) Longitudinal study
C) Correlational study
D) Case study
Rationale: A longitudinal design follows the same individuals over time, allowing researchers to
observe developmental change and stability. Cross-sectional designs compare different age
groups at a single time point.
6. A correlation coefficient of -0.85 indicates:
A) A weak positive relationship
B) A strong negative relationship
C) No relationship
D) An error in calculation
Rationale: A correlation coefficient of -0.85 indicates a strong negative (inverse) relationship: as
one variable increases, the other tends to decrease. Values closer to -1.0 indicate stronger
relationships.
7. The key difference between a correlational study and an experimental study is that
experiments:
A) Are always conducted in a laboratory
B) Allow the researcher to manipulate the independent variable to determine cause-and-effect
C) Use only children as participants
D) Do not require statistical analysis
Rationale: Experiments involve the systematic manipulation of an independent variable while
controlling extraneous variables, allowing researchers to infer cause-and-effect relationships,
which correlational designs cannot establish.
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8. A researcher studying the effect of a new teaching method on math achievement randomly
assigns students to either the new method or the traditional method. The teaching method is
the:
A) Dependent variable
B) Independent variable
C) Confounding variable
D) Control variable
Rationale: The independent variable is the factor that the researcher manipulates (teaching
method). The dependent variable is the outcome measured (math achievement).
9. Which research design is most efficient for studying age-related changes but cannot
distinguish between age effects and cohort effects?
A) Longitudinal
B) Cross-sectional
C) Sequential
D) Experimental
Rationale: Cross-sectional designs compare different age groups at the same time point. They
are efficient but confound age differences with cohort (generation) differences.
10. The ethical principle of informed consent in research with children requires that:
A) Children sign a legal contract
B) Parents or guardians provide permission, and children provide assent when capable
C) Only the researcher's judgment matters
D) Consent is never required for research with minors
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DEVELOPMENTAL PSYCHOLOGY INFANCY AND
CHILDHOOD EXAM WITH VERIFIED ANSWERS DETAILED
RATIONALES GRADED A+
DOMAIN 1: INTRODUCTION TO DEVELOPMENTAL PSYCHOLOGY AND RESEARCH STRATEGIES
1. Developmental psychology is best defined as the scientific study of:
A) How people change physically only
B) The systematic continuities and changes in an individual from conception to death
C) Only childhood behaviour
D) The treatment of psychological disorders
Rationale: Developmental psychology is the scientific study of systematic continuities and
changes in individuals across the lifespan, from conception to death, encompassing physical,
cognitive, and social-emotional domains.
2. The nature vs. nurture debate in developmental psychology concerns:
A) Whether development is continuous or discontinuous
B) The relative contributions of genetic inheritance (nature) and environmental experience
(nurture) to development
C) Whether children are inherently good or bad
D) Whether development is stable or changeable
1|Page
,Page 2 of 90
Rationale: The nature vs. nurture debate addresses how genetic (nature) and experiential
(nurture) factors influence development. Most developmentalists now recognize that both
interact dynamically.
3. A researcher who believes that development occurs in distinct, qualitative stages adheres
to which viewpoint?
A) Continuous development
B) Discontinuous (stage) development
C) Nature perspective
D) Nurture perspective
Rationale: The discontinuous (stage) view holds that development involves distinct, qualitative
changes that occur in a specific sequence, like the stages proposed by Piaget and Erikson.
4. The stability vs. change issue in developmental psychology asks:
A) Whether development is influenced by nature or nurture
B) Whether early personality traits persist through life or are subject to change
C) Whether development is continuous or stage-like
D) Whether development occurs in one domain at a time
Rationale: The stability vs. change issue addresses whether characteristics present in infancy
remain stable across the lifespan or if later experiences can fundamentally change
developmental trajectories.
5. A researcher who follows the same group of children over a period of 10 years is
conducting a:
2|Page
,Page 3 of 90
A) Cross-sectional study
B) Longitudinal study
C) Correlational study
D) Case study
Rationale: A longitudinal design follows the same individuals over time, allowing researchers to
observe developmental change and stability. Cross-sectional designs compare different age
groups at a single time point.
6. A correlation coefficient of -0.85 indicates:
A) A weak positive relationship
B) A strong negative relationship
C) No relationship
D) An error in calculation
Rationale: A correlation coefficient of -0.85 indicates a strong negative (inverse) relationship: as
one variable increases, the other tends to decrease. Values closer to -1.0 indicate stronger
relationships.
7. The key difference between a correlational study and an experimental study is that
experiments:
A) Are always conducted in a laboratory
B) Allow the researcher to manipulate the independent variable to determine cause-and-effect
C) Use only children as participants
D) Do not require statistical analysis
Rationale: Experiments involve the systematic manipulation of an independent variable while
controlling extraneous variables, allowing researchers to infer cause-and-effect relationships,
which correlational designs cannot establish.
3|Page
, Page 4 of 90
8. A researcher studying the effect of a new teaching method on math achievement randomly
assigns students to either the new method or the traditional method. The teaching method is
the:
A) Dependent variable
B) Independent variable
C) Confounding variable
D) Control variable
Rationale: The independent variable is the factor that the researcher manipulates (teaching
method). The dependent variable is the outcome measured (math achievement).
9. Which research design is most efficient for studying age-related changes but cannot
distinguish between age effects and cohort effects?
A) Longitudinal
B) Cross-sectional
C) Sequential
D) Experimental
Rationale: Cross-sectional designs compare different age groups at the same time point. They
are efficient but confound age differences with cohort (generation) differences.
10. The ethical principle of informed consent in research with children requires that:
A) Children sign a legal contract
B) Parents or guardians provide permission, and children provide assent when capable
C) Only the researcher's judgment matters
D) Consent is never required for research with minors
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