Final answer:
Environmental or experiential factors that help define individual differences in development include socioeconomic status, parenting styles, and cognitive abilities. Genetic factors are not considered an environmental or experiential factor.
Step-by-step explanation:
The environmental or experiential factors that help define individual differences in development include genetic factors, socioeconomic status, parenting styles, and cognitive abilities. However, genetic factors are not considered an environmental or experiential factor. Genetic factors refer to the traits and characteristics that individuals inherit from their parents and are determined by their genes. These factors play a fundamental role in shaping an individual's development but are distinct from the environmental factors that influence individual differences.