liz is 36 weeks pregnant a rise in her babys heart rate is probably followed within five seconds by

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Human Growth and Development Exam Questions

1. Liz is 36 weeks pregnant. A rise in her baby's heart rate is probably followed within five seconds by __________.

A. a burst of motor activity
B. a period of sleep
C. a rise in Liz's heart rate
D. a drop in Liz's body temperature

Correct answer: A

Rationale: A rise in the baby's heart rate during pregnancy is usually followed within five seconds by a burst of motor activity. This indicates that the baby is responding to stimuli and is an important sign of healthy fetal development. A period of sleep, a rise in Liz's heart rate, or a drop in Liz's body temperature are not typically immediate responses to changes in the baby's heart rate. Sleep is less likely to be a direct response to changes in heart rate, Liz's heart rate is independent of the baby's heart rate changes, and a drop in Liz's body temperature is not a common immediate response to fetal heart rate changes.

2. Fetal monitoring is __________.

A. rarely used in U.S. hospitals
B. linked with low birth weight
C. linked with a decreased rate of cesarean deliveries
D. required in most U.S. hospitals

Correct answer: D

Rationale: Fetal monitoring is required in most U.S. hospitals during labor and delivery to track the baby's heart rate and the mother's contractions. This helps healthcare providers to assess the well-being of the fetus and make timely decisions regarding the need for interventions if any complications arise. Choices A, B, and C are incorrect because fetal monitoring is a standard procedure in most hospitals to ensure the safety and health of both the mother and the baby during labor.

3. In females, the twenty-third pair of chromosomes is labeled as __________.

A. an autosome
B. dizygotic
C. XX
D. XY

Correct answer: C

Rationale: In females, the twenty-third pair of chromosomes is indeed labeled as XX. This pair of chromosomes determines the biological sex of females. Choice A, 'an autosome,' is incorrect as autosomes refer to the non-sex chromosomes. Choice B, 'dizygotic,' is incorrect as it relates to twins. Choice D, 'XY,' is incorrect as it represents the chromosome pair found in males.

4. In field experiments, researchers __________.

A. selectively assign participants to treatment conditions in natural settings
B. cannot use random assignment or manipulate treatment conditions
C. randomly assign participants to treatment conditions in natural settings
D. have stronger control over the treatment than in the laboratory

Correct answer: C

Rationale: In field experiments, researchers randomly assign participants to treatment conditions in natural settings. This method allows for a higher level of control over potential confounding variables compared to non-random assignment. Random assignment helps ensure that the groups being compared are comparable at the beginning of the study, which strengthens the internal validity of the research findings. Choice A is incorrect because selective assignment may introduce bias. Choice B is incorrect as researchers can use random assignment in field experiments. Choice D is incorrect because field experiments typically have less control over the treatment compared to laboratory experiments.

5. Piaget's critics point out that __________.

A. he overestimated the competencies of infants and young children
B. his stagewise account pays insufficient attention to social and cultural influences
C. discovery learning rather than adult teaching is the best way to foster development
D. children's performances on Piagetian tasks cannot be improved with training

Correct answer: B

Rationale: Piaget's critics point out that his stagewise account pays insufficient attention to social and cultural influences. Critics argue that Piaget's theory does not fully consider the impact of social interactions, cultural differences, and individual experiences on children's cognitive development. They believe that these factors play a crucial role in shaping a child's thinking and problem-solving abilities, which should be given more emphasis. Choice A is incorrect because Piaget's critics do not focus on him overestimating the competencies of infants and young children. Choice C is incorrect as it discusses a different aspect of learning rather than the critique of Piaget's theory. Choice D is also incorrect since critics do not argue that children's performances on Piagetian tasks cannot be improved with training.