NCLEX Review Guide: Growth & Development, Stages of Life, and Gender Identity

Key Definitions and Concepts

• Growth refers to quantitative changes in physical size, weight, and height that are measurable and observable. Development encompasses qualitative changes in function, skills, and abilities including cognitive, emotional, and social progress.
• Critical periods are specific timeframes when certain developmental milestones must occur for normal progression, while sensitive periods are optimal times for learning specific skills.
• Development follows predictable patterns: cephalocaudal (head to toe), proximodistal (center to periphery), and simple to complex.

Infancy (0-12 months)

• Physical milestones: Birth weight doubles by 6 months, triples by 12 months; length increases by 50% in first year. Monitor for failure to thrive if growth percentiles drop significantly.
• Motor development: Rolls over (4-6 months), sits without support (6-8 months), walks independently (12-15 months). Primitive reflexes should disappear by 6 months.
• Cognitive development: Object permanence develops around 8-12 months; stranger anxiety peaks at 8-10 months indicating healthy attachment formation.

Toddlerhood (1-3 years)

• Autonomy vs. Shame (Erikson): Toddlers assert independence while learning self-control. Expect negativism and tantrums as normal developmental behavior.
• Language explosion: Vocabulary increases from 50 words at 18 months to 1000+ words by age 3; two-word phrases emerge around 18-24 months.
• Safety concerns: Peak age for accidents due to increased mobility and curiosity without developed judgment.

Preschool (3-6 years)

• Initiative vs. Guilt (Erikson): Children begin planning activities and tackling new challenges. Magical thinking and animism are normal cognitive characteristics.
• Physical skills: Gross motor skills include running, jumping, climbing; fine motor skills develop for drawing and eventually writing.
• Social development: Parallel play transitions to cooperative play; gender identity typically solidifies during this stage.

Gender Identity Formation

• Gender identity is one's internal sense of being male, female, or another gender, which typically develops between ages 2-4 years. This differs from biological sex assigned at birth based on anatomy.
• Gender constancy develops around age 5-7 when children understand that gender remains stable despite changes in appearance, clothing, or activities.
• Support families in understanding that gender identity exploration is normal and provide resources for gender-diverse youth and families.

Supporting Gender-Diverse Youth

1. Use the child's preferred name and pronouns
2. Provide non-judgmental, supportive care
3. Educate families about gender identity vs. sexual orientation
4. Connect families with appropriate mental health resources
5. Advocate for inclusive healthcare policies