Students who struggle academically often face feelings of inadequacy. Providing social attention and emotional support is essential to boost their self-esteem and engagement, as they are at risk of feeling alienated or discouraged in a traditional classroom setting.

Monozygotic twins develop from a single fertilized egg that splits into two, resulting in identical genetic makeup. Dizygotic twins develop from two separate eggs fertilized by two separate sperm, resulting in fraternal twins who share approximately 50% of their DNA, similar to non-twin siblings.

In genetics, a dominant gene is one that masks the presence of a recessive allele. If an individual inherits a dominant gene, the trait associated with that gene will be expressed in the phenotype, regardless of the other allele present. This principle is fundamental to understanding inheritance patterns and how specific physical or behavioral characteristics are passed from parents to offspring through biological mechanisms.

The finding that siblings reared together show higher IQ correlations than siblings reared apart suggests that shared environmental factors play a role in cognitive development. While genetics are a major factor, the difference in similarity between those raised in the same household versus those raised in different environments highlights the impact of environmental upbringing on intellectual outcomes.

The term 'tabula rasa,' or 'blank slate,' is a philosophical concept popularized by John Locke. It suggests that individuals are born without innate knowledge or predetermined personality traits, and that all human behavior, knowledge, and character are shaped entirely by environmental influences and personal experiences.

Child development is the result of a continuous and dynamic interaction between nature (heredity) and nurture (environment). Heredity sets the biological potential, while the environment provides the context and experiences necessary to realize that potential. Both are indispensable, and their interplay is what defines the unique developmental trajectory of every individual.

Unlike Freud, who focused heavily on early childhood experiences, Erik Erikson proposed a lifespan theory of development. He argued that individuals face unique psychosocial crises at every stage of life, from infancy through old age, and that development continues to evolve as people navigate these challenges throughout their entire lifespan.

Gender schema theory, proposed by Sandra Bem, suggests that children learn cultural definitions of gender and then use these 'schemas' to process information about themselves and others. This cognitive framework helps individuals categorize behaviors and personality traits as either masculine or feminine based on societal norms.

Physical differences, such as those related to biological traits, are primarily determined by genetic inheritance. These traits are considered innate, meaning they are present from birth, and they are not acquired through learning or environmental conditioning. Therefore, describing them as both innate and not learned accurately reflects their biological nature as inherent characteristics of an individual's phenotype.

Identical twins share 100% of their genetic material, whereas fraternal twins share approximately 50%. Studies consistently show that identical twins exhibit significantly higher correlations in IQ scores compared to fraternal twins, even when raised in the same environment. This suggests a strong genetic component to intelligence, as the similarity in scores remains higher for identical twins regardless of the shared environment.