Nokea
Bernadette, a participant in a longitudinal study, became quite familiar with the test over time and, as a result, her performance improved. This limitation of longitudinal research is known as __________.
- A. biased sampling
- B. practice effects
- C. random assignment
- D. cohort effects
Correct Answer: B
Rationale: Practice effects refer to the phenomenon where participants in a longitudinal study show improvement in test performance over time due to becoming familiar with the tasks or test materials. This can be considered a limitation as it may distort the results by showing an artificial improvement rather than a true developmental change.
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__________ is the least-developed of the newborn babyƒ¢¢â€š¬¢â€ž¢s senses.
- A. Taste
- B. Sound
- C. Vision
- D. Touch
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which individual is most likely to experience the greatest percentage of REM sleep?
- A. Sammy, a preschool child
- B. Jake, a full-term newborn
- C. Sarah, a teenager
- D. Cheryl, a preterm newborn
Correct Answer: D
Rationale: Preterm newborns, like Cheryl, experience a higher percentage of REM sleep compared to full-term newborns. This is because REM sleep plays a critical role in brain development, and preterm infants have an increased need for brain development due to their early arrival. Therefore, Cheryl, as a preterm newborn, is most likely to experience the greatest percentage of REM sleep among the individuals listed.
What is one strength of the cross-sectional design?
- A. It provides evidence about individual trends.
- B. It cannot be threatened by cohort effects.
- C. It is not plagued with dropout or practice effects.
- D. It permits longitudinal comparisons.
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Regarding a baby's adaptation to labor and delivery, stress hormones __________.
- A. endanger the newborn
- B. arouse the infant into alertness
- C. cause the cervix to thin and the uterine wall to contract
- D. cause the mother to breathe deeply, increasing the infant's oxygen supply
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Dr. Wu observes children's responses to bullying by watching them play in a park. This is an example of a(n) __________.
- A. ethnographic study
- B. naturalistic observation
- C. structured observation
- D. clinical interview
Correct Answer: B
Rationale: Dr. Wu's observation of children's responses to bullying by watching them play in a park is an example of naturalistic observation. Naturalistic observation involves observing behavior in a natural setting without any manipulation or intervention. Dr. Wu is simply observing the children's behavior in a real-world setting to gain insights into how they respond to bullying, making it a naturalistic observation.