ATI RN
Human Growth and Development Exam 1
1. Lily weighed 8 pounds and was 21 inches long at birth. She was __________ than the average baby.
- A. heavier but shorter
- B. heavier and longer
- C. lighter but longer
- D. lighter and shorter
Correct answer: B
Rationale: Lily weighed 8 pounds and was 21 inches long at birth. Being both heavier and longer than average babies typically are at birth, Lily would be considered heavier and longer compared to the average baby. This makes choice B, 'heavier and longer,' the correct answer. Choices A, C, and D are incorrect because Lily was not shorter or lighter than the average baby at birth.
2. Katie wonders when she will first be able to hear her fetus's heartbeat through a stethoscope. You tell her that this should happen by the __________.
- A. fourth week of pregnancy
- B. third month of pregnancy
- C. end of the second trimester
- D. beginning of the third trimester
Correct answer: B
Rationale: The correct answer is the third month of pregnancy (choice B). During the third month of pregnancy, which is around 9-12 weeks, a fetal heartbeat can typically be heard using a stethoscope. This is an exciting milestone for expectant parents as it provides reassurance about the baby's well-being. Choices A, C, and D are incorrect because by the fourth week of pregnancy, the fetal heartbeat is not usually detectable with a stethoscope. The end of the second trimester and the beginning of the third trimester are too late in the pregnancy timeline for this milestone.
3. What is the goal of applied behavior analysis?
- A. outline changes in temperament over the lifespan
- B. eliminate undesirable behaviors and increase desirable responses
- C. examine how we think about ourselves and other people
- D. synthesize information from various sources into a detailed picture of a person's personality
Correct answer: B
Rationale: The correct answer is B: "eliminate undesirable behaviors and increase desirable responses." Applied behavior analysis aims to modify behavior by focusing on eliminating unwanted behaviors and reinforcing desirable ones. It does not primarily deal with changes in temperament (choice A), self-perception (choice C), or personality traits (choice D). The approach involves techniques such as reinforcement to target specific behaviors, rather than broader cognitive processes or personality characteristics.
4. Self-reports __________.
- A. use a flexible, conversational style to probe for the participant's point of view
- B. describe the entire stream of behavior—everything said and done over a certain time period
- C. range from relatively unstructured interviews to highly structured interviews, questionnaires, and tests
- D. bring together a wide range of information on one person, including interviews, observations, and test scores
Correct answer: C
Rationale: Self-reports can range from relatively unstructured interviews to highly structured interviews, questionnaires, and tests. This variety allows researchers to collect information from participants in different ways, depending on the research goals and the type of information being sought. Choices A, B, and D are incorrect because they do not accurately describe the range and flexibility of self-reports as outlined in the field of research methodology.
5. What is one challenge associated with longitudinal research?
- A. It does not allow for inferences about cause-and-effect relationships.
- B. Participants may relocate or drop out of the study.
- C. Findings may not be applicable to real-world scenarios.
- D. It does not allow for the examination of individual developmental patterns.
Correct answer: B
Rationale: One challenge associated with longitudinal research is that participants may relocate or drop out of the study over time. This can result in missing data and potential biases in the findings, impacting the study's overall validity and reliability. Furthermore, it can present difficulties for researchers in accurately monitoring and analyzing changes in individuals over an extended period. Options A, C, and D are incorrect because longitudinal research can indeed allow for inferences about cause-and-effect relationships, findings can be generalized to the real world with appropriate design and sampling, and it is suitable for studying individual developmental patterns.
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