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.
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An ovum bursts from one of a woman's two __________ and is drawn into one of two __________.
- A. ovaries; testes
- B. fallopian tubes; ovaries
- C. corpus luteum; fallopian tubes
- D. ovaries; fallopian tubes
Correct Answer: D
Rationale: An ovum bursts from one of a woman's two ovaries and is drawn into one of two fallopian tubes. This is a correct description of the process of ovulation and fertilization in human reproductive anatomy. The ovaries are responsible for producing and releasing eggs, while the fallopian tubes provide a pathway for the egg to travel to the uterus for potential fertilization.
During her pregnancy, Padma increased her intake of coffee and tea. Her doctor is likely to tell her that high doses of caffeine contained in coffee and tea increase the risk of __________.
- A. premature labor
- B. limb deformities
- C. respiratory distress at birth
- D. low birth weight
Correct Answer: D
Rationale: High doses of caffeine contained in coffee and tea have been linked to an increased risk of low birth weight. Consuming large amounts of caffeine during pregnancy can interfere with the baby's growth and development, leading to a lower birth weight than expected. It is important for pregnant women to limit their caffeine intake to reduce the risk of complications such as low birth weight.
In an experimental study examining whether children who are read to more often score higher on vocabulary tests in first grade, the independent variable would be the __________.
- A. frequency of read-alouds
- B. type of books parents read
- C. child's vocabulary score
- D. difficulty of vocabulary words
Correct Answer: A
Rationale: In an experimental study, the independent variable is the factor being manipulated or controlled by the researcher. In this case, the frequency of read-alouds is the variable that researchers would intentionally change or vary to see its effect on the dependent variable, which is the children's vocabulary scores. The other options (B. type of books parents read, C. child's vocabulary score, and D. difficulty of vocabulary words) are not the independent variable in this study as they are either irrelevant or are the outcome being measured.
Lillian uses flowcharts to map the precise steps individuals use to solve problems and complete tasks. Lillian is a(n) __________ theorist.
- A. psychoanalytic
- B. information-processing
- C. psychosocial
- D. social learning
Correct Answer: B
Rationale: Lillian, who uses flowcharts to map precise steps individuals use to solve problems and complete tasks, is likely an information-processing theorist. Information-processing theorists focus on how people take in, store, and retrieve information to solve problems and make decisions, which aligns with Lillian's use of flowcharts to map out problem-solving steps.
During her labor, Renee asks for a mild dose of painkillers to help her relax. Renee will probably be given __________.
- A. an anesthetic
- B. an analgesic
- C. folic acid
- D. an anti-inflammatory medication
Correct Answer: B
Rationale: Renee will likely be given an analgesic during her labor to help manage her pain and provide relaxation. Analgesics are painkillers that can help reduce pain without causing loss of consciousness, making them suitable for labor pain management. Examples of analgesics commonly used during labor include opioids like morphine and non-opioids like acetaminophen.