Nokea
To overcome some of the limitations of traditional developmental designs, investigators sometimes use __________ designs, in which they conduct several similar cross-sectional or longitudinal studies.
- A. sequential
- B. experimental
- C. correlational
- D. quasi-experimental
Correct Answer: A
Rationale: Sequential designs involve conducting multiple similar cross-sectional or longitudinal studies to overcome limitations of traditional developmental designs. By combining different types of study designs, researchers can gain a more comprehensive understanding of development over time. This approach allows for more robust conclusions and can help address potential confounding variables that may impact the results.
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Newborns of smoking mothers __________.
- A. are more attentive to sounds
- B. display more muscle tension
- C. less often have colic
- D. are less excitable when visually stimulated
Correct Answer: B
Rationale: Newborns of smoking mothers display more muscle tension. This is because nicotine in cigarettes can lead to increased muscle tension in babies, which can affect their physical development and potentially lead to future health issues. This is one of the negative effects of smoking during pregnancy on the developing fetus.
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.
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.
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.
Which expectant mother has the greatest risk of a baby born with fetal alcohol syndrome?
- A. Chloe, a Caucasian American
- B. Latima, an African American
- C. Yvonne, a Native American
- D. Ming, an Asian American
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.