a sequential design
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ATI RN

Human Growth and Development Exam 1

1. Which of the following best describes a sequential design?

Correct answer: B

Rationale: A sequential design permits researchers to check if cohort effects are operating. This design involves combining cross-sectional and longitudinal research, allowing for the comparison of different cohorts at different ages. By using this approach, researchers can determine if developmental changes observed are due to age or generation-specific factors. Therefore, a sequential design is valuable in addressing the potential influence of cohort effects on developmental outcomes. Choices A, C, and D are incorrect because a sequential design does not neglect diversity in developmental outcomes, is not necessarily less efficient than a longitudinal design, and can make both cross-sectional and longitudinal comparisons.

2. Dr. McBride wants to know if the teacher's use of encouragement in the classroom affects the children's self-esteem. To assign children to treatment conditions, Dr. McBride should __________.

Correct answer: C

Rationale: Drawing the children's names out of a hat is a way to randomly assign them to treatment conditions. Random assignment helps to ensure that any differences in self-esteem that may be observed in the study are not due to pre-existing characteristics of the children. This method helps to establish a cause-and-effect relationship between the teacher's use of encouragement and the children's self-esteem. Choice A is incorrect because assigning children based on test scores may introduce bias into the study. Choice B is incorrect as balancing gender is not relevant to the research question. Choice D is incorrect as it introduces a bias by selecting a specific group of children based on a characteristic unrelated to the study objective.

3. How does physical activity impact mental health?

Correct answer: A

Rationale: Physical activity is known to have a positive impact on mental health by reducing symptoms of anxiety and depression. Choice B is incorrect because physical activity generally improves both mood and alertness. Choice C is incorrect as physical activity tends to increase mood, alertness, and energy levels. Choice D is incorrect as physical activity actually increases neural activity in the cerebral cortex, which is associated with improved cognitive function and mental well-being.

4. You can tell her that healthy women in their thirties have __________ as those in their twenties.

Correct answer: D

Rationale: Healthy women in their thirties typically have about the same rates of pregnancy complications as those in their twenties. While it is true that the risk of fertility issues and certain pregnancy complications may increase with age, generally speaking, women in their thirties who are healthy and do not have preexisting conditions do not necessarily experience higher rates of pregnancy complications compared to women in their twenties.

5. According to Erikson, __________ occurs when aging adults feel they have made many wrong decisions, yet time is too short to find an alternate route to integrity.

Correct answer: B

Rationale: According to Erikson's theory of psychosocial development, despair is the stage that aging adults face when they reflect on their life and feel they have not achieved their goals, with little time left to correct their mistakes. Mistrust (choice A) is associated with infancy, stagnation (choice C) with middle adulthood, and isolation (choice D) with young adulthood, and are not relevant to the described scenario of aging adults reflecting on their life decisions.

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