According to developmental psychologist David Moore, genetic factors:

• A. are fixed and unchangeable throughout the lifespan
• B. determine all aspects of behavior independently of the environment
• C. have no significant impact on psychological development
• D. interact with environmental influences to shape development

Answer: (D)

Verified step by step guidance

1. Understand the role of genetic factors in psychological development: Genetic factors refer to the inherited biological traits passed from parents to offspring, which can influence various aspects of behavior and development.
2. Recognize that genetic factors are not fixed in isolation; instead, they interact dynamically with environmental influences such as upbringing, culture, and life experiences.
3. Consider the concept of gene-environment interaction, which means that genes can influence how individuals respond to their environment, and the environment can affect how genes are expressed.
4. Evaluate the incorrect options by noting that genetic factors are neither completely fixed and unchangeable nor do they determine behavior independently of the environment, and they certainly have a significant impact on development.
5. Conclude that the most accurate understanding, as stated by David Moore, is that genetic factors interact with environmental influences to shape psychological development.