In Chapter 1 we've learnt that how various factors from the Health Belief Model influence how people think, and ultimately their ability to change undesirable behaviour. Similarly, in this chapter we will look at how children's development influence their ability to understand, manage or change health related behaviours. This chapter will give you an overview of key theories in children's psychological development and their relevance to nursing practice.

Here are the areas covered in your learning journey for this week:

1. Cognitive Development: Piaget's Theory

2. Psychosocial Development: Erikson's Life Stages

3. Social Cognitive Theory: Albert Bandura

4. The Health Belief Model and Childhood Obesity

• By the end of this week's lesson, you should be able to understand the cognitive and psychosocial differences in children of different ages.

• Be able to understand how these cognitive and psychosocial factors influence children's health and illness behaviour

• Learn to apply the Health Belief Model to understand patients' decisions that impact their health or illness.