HDFS 210 Exam 1 Actual Exam Questions
And Answers, Questions with Solutions
Newest 2026-2027 | Already Graded A+
1. A researcher is interested in studying how moral reasoning changes from
childhood to adulthood. She recruits participants ages 8, 12, 16, and 20 and tests
them all at the same time. This is an example of a ______ study.
a. longitudinal
b. sequential
c. cross-sectional
d. microgenetic
• ANSWER-c
2. Dr. Martinez follows a group of preterm infants from birth through age 5,
assessing their language development every 6 months. This research design is best
described as ______.
a. cross-sectional
b. longitudinal
c. sequential
d. correlational
• ANSWER-b
3. A developmental psychologist wants to examine how peer relationships change
across childhood. She assesses children at ages 6, 8, 10, and 12, then again 10
years later when they are 16, 18, 20, and 22. This mixed approach represents a
______ design.
a. longitudinal
b. cross-sectional
c. sequential
d. time-lag
, • ANSWER-c
4. Which of the following research designs would be most effective for
determining whether a specific intervention causes improvements in reading
comprehension?
a. naturalistic observation
b. correlational study
c. experimental design
d. case study
• ANSWER-c
5. A negative correlation between hours of television watched and academic
achievement would indicate that ______.
a. watching television causes lower academic achievement
b. lower academic achievement causes children to watch more television
c. as television viewing increases, academic achievement tends to decrease
d. there is no relationship between television viewing and academic achievement
• ANSWER-c
6. In an experiment examining the effects of sleep deprivation on cognitive
performance, the amount of sleep participants receive is the ______ variable.
a. dependent
b. confounding
c. control
d. independent
• ANSWER-d
7. Which research method would be most appropriate for studying the natural play
behaviors of preschool children in their typical classroom setting without
interfering?
,a. structured observation
b. naturalistic observation
c. clinical interview
d. laboratory experiment
• ANSWER-b
8. A researcher finds that the correlation between parental income and children's
vocabulary size is +0.85. This indicates a ______ relationship.
a. weak positive
b. strong positive
c. weak negative
d. strong negative
• ANSWER-b
9. The ethical principle of ______ requires that researchers obtain informed
consent and protect participants from harm.
a. debriefing
b. beneficence
c. confidentiality
d. reimbursement
• ANSWER-b
10. When a researcher's presence causes participants to behave differently than
they normally would, this is known as ______.
a. experimenter bias
b. demand characteristics
c. reactivity
d. sampling error
• ANSWER-c
, 11. Piaget's theory of cognitive development includes ______ stages that occur in a
______ order.
a. three; variable
b. four; fixed
c. five; flexible
d. six; random
• ANSWER-b
12. According to Piaget, the stage from birth to approximately 2 years of age is
called the ______ stage.
a. preoperational
b. concrete operational
c. sensorimotor
d. formal operational
• ANSWER-c
13. An infant who searches for a toy that has been hidden under a blanket is
demonstrating the concept of ______.
a. assimilation
b. accommodation
c. object permanence
d. egocentrism
• ANSWER-c
14. Piaget used the term "schema" to refer to ______.
a. a stage of cognitive development
b. an organized pattern of thought or action
c. a moral dilemma
d. a type of attachment
• ANSWER-b
And Answers, Questions with Solutions
Newest 2026-2027 | Already Graded A+
1. A researcher is interested in studying how moral reasoning changes from
childhood to adulthood. She recruits participants ages 8, 12, 16, and 20 and tests
them all at the same time. This is an example of a ______ study.
a. longitudinal
b. sequential
c. cross-sectional
d. microgenetic
• ANSWER-c
2. Dr. Martinez follows a group of preterm infants from birth through age 5,
assessing their language development every 6 months. This research design is best
described as ______.
a. cross-sectional
b. longitudinal
c. sequential
d. correlational
• ANSWER-b
3. A developmental psychologist wants to examine how peer relationships change
across childhood. She assesses children at ages 6, 8, 10, and 12, then again 10
years later when they are 16, 18, 20, and 22. This mixed approach represents a
______ design.
a. longitudinal
b. cross-sectional
c. sequential
d. time-lag
, • ANSWER-c
4. Which of the following research designs would be most effective for
determining whether a specific intervention causes improvements in reading
comprehension?
a. naturalistic observation
b. correlational study
c. experimental design
d. case study
• ANSWER-c
5. A negative correlation between hours of television watched and academic
achievement would indicate that ______.
a. watching television causes lower academic achievement
b. lower academic achievement causes children to watch more television
c. as television viewing increases, academic achievement tends to decrease
d. there is no relationship between television viewing and academic achievement
• ANSWER-c
6. In an experiment examining the effects of sleep deprivation on cognitive
performance, the amount of sleep participants receive is the ______ variable.
a. dependent
b. confounding
c. control
d. independent
• ANSWER-d
7. Which research method would be most appropriate for studying the natural play
behaviors of preschool children in their typical classroom setting without
interfering?
,a. structured observation
b. naturalistic observation
c. clinical interview
d. laboratory experiment
• ANSWER-b
8. A researcher finds that the correlation between parental income and children's
vocabulary size is +0.85. This indicates a ______ relationship.
a. weak positive
b. strong positive
c. weak negative
d. strong negative
• ANSWER-b
9. The ethical principle of ______ requires that researchers obtain informed
consent and protect participants from harm.
a. debriefing
b. beneficence
c. confidentiality
d. reimbursement
• ANSWER-b
10. When a researcher's presence causes participants to behave differently than
they normally would, this is known as ______.
a. experimenter bias
b. demand characteristics
c. reactivity
d. sampling error
• ANSWER-c
, 11. Piaget's theory of cognitive development includes ______ stages that occur in a
______ order.
a. three; variable
b. four; fixed
c. five; flexible
d. six; random
• ANSWER-b
12. According to Piaget, the stage from birth to approximately 2 years of age is
called the ______ stage.
a. preoperational
b. concrete operational
c. sensorimotor
d. formal operational
• ANSWER-c
13. An infant who searches for a toy that has been hidden under a blanket is
demonstrating the concept of ______.
a. assimilation
b. accommodation
c. object permanence
d. egocentrism
• ANSWER-c
14. Piaget used the term "schema" to refer to ______.
a. a stage of cognitive development
b. an organized pattern of thought or action
c. a moral dilemma
d. a type of attachment
• ANSWER-b
