Which research method was borrowed from the field of anthropology?
- A. ethnography
- B. clinical interview
- C. structured interview
- D. systematic observation
Correct Answer: A
Rationale: The correct answer is A: ethnography. Ethnography is a research method borrowed from the field of anthropology. It involves observing and documenting behaviors and interactions in a naturalistic setting. This method allows researchers to gain insight into the cultural context and practices of a group through direct observation and participation. Choices B, C, and D are incorrect because clinical interviews, structured interviews, and systematic observations are research methods used in different contexts and fields, not borrowed specifically from anthropology.
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What are the most obvious organized patterns of behavior in a newborn baby?
- A. Reflexes
- B. States of arousal
- C. Shrill cries
- D. Sleep patterns
Correct Answer: A
Rationale: The correct answer is A: Reflexes. Reflexes are automatic, involuntary responses to specific stimuli and are the most obvious organized patterns of behavior in a newborn baby. Examples of newborn reflexes include sucking, rooting, grasping, and the Moro reflex. These reflexes are crucial for the newborn's survival and overall development. Choice B, states of arousal, refers to different levels of consciousness and responsiveness, not organized behavior patterns. Choice C, shrill cries, is a form of communication and not an organized behavior pattern. Choice D, sleep patterns, while important for newborns, are not the most obvious organized behavior patterns.
By using which method of assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups?
- A. sequential
- B. random
- C. systematic
- D. correlational
Correct Answer: B
Rationale: By using random assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups. Random assignment helps reduce the likelihood of bias in the selection process and ensures that any differences between groups are due to the treatment and not pre-existing group differences. Sequential, systematic, and correlational assignment methods do not provide the same level of assurance in distributing participants' characteristics equally across treatment groups.
Which statement about the human immunodeficiency virus (HIV) is true?
- A. About 30 percent of all new HIV infections affect women.
- B. In South Africa, 30 percent of all pregnant women are HIV-positive.
- C. About 30 percent of new HIV infections occur in developing countries.
- D. Untreated HIV-infected mothers pass the virus to the fetus 30 percent of the time.
Correct Answer: B
Rationale: The correct answer is B: 'In South Africa, 30 percent of all pregnant women are HIV-positive.' This statement is true as South Africa has a high prevalence of HIV among pregnant women, emphasizing the need for interventions to prevent mother-to-child transmission. Choices A, C, and D are incorrect. Choice A is inaccurate as women account for more than 50% of new HIV infections globally. Choice C is misleading as the majority of new HIV infections actually occur in sub-Saharan Africa, not just developing countries. Choice D is also incorrect as without treatment, the risk of mother-to-child transmission is higher than 30%.
Dr. Anderson wants to conduct a study to determine the cause-and-effect relationship between domestic violence and anger in children. Dr. Anderson should use a(n) __________ design.
- A. structured
- B. observational
- C. correlational
- D. experimental
Correct Answer: D
Rationale: Dr. Anderson should use an experimental design to determine the cause-and-effect relationship between domestic violence and anger in children. In an experimental design, the researcher manipulates the independent variable (in this case, exposure to domestic violence) to observe its effect on the dependent variable (anger in children). This design allows for the establishment of a cause-and-effect relationship by controlling for other variables that may influence the outcomes. Observational design (Choice B) involves observing subjects in their natural environment without interference, correlational design (Choice C) examines the relationship between variables without manipulating them, and structured design (Choice A) typically refers to a study with predetermined procedures and data collection methods, which may not be suitable for establishing cause-and-effect relationships.
Before the late 1800s, childbirth usually took place __________.
- A. at home and was a family-centered event
- B. at home, but away from other family members
- C. in a hospital with trained midwives
- D. in the home of a medical professional or in a hospital
Correct Answer: A
Rationale: Before the late 1800s, childbirth usually took place at home and was a family-centered event. During this period, most women gave birth at home with the help of family members and possibly a midwife. Hospitals were not common settings for childbirth at that time. Choice B is incorrect because childbirth was not typically done away from family members. Choice C is incorrect because hospitals were not the common setting for childbirth before the late 1800s. Choice D is incorrect because giving birth in the home of a medical professional or a hospital was not the norm during that period.