Assessment Task
For this assessment, you are required to demonstrate your understanding of key developmental theories and their application to real-life scenarios.

  1. Read the case study (provided below).
  2. Review Chapters 1 and 2 of the prescribed textbook: Sigelman, C. K., & Rider, E. A. (2017). Life-span human development.
  3. Select TWO developmental theories from the following list and apply them to the case study:
    o Erikson’s Psychosocial Theory
    o Bronfenbrenner’s Ecological Systems Theory
    o Bandura’s Social Learning Theory
    Assessment Questions
  4. Comparative Analysis (example, 750 words):
    Identify and describe aspects of Kalina and Yara’s upbringing and environments that were similar, as well as those that differed. Use the two
    selected theories to analyse and support your discussion.
  5. Impact on Development (example, 750 words):
    Discuss how these factors may have influenced the developmental trajectories of Kalina and Yara, and how they contribute to their current
    divergent lifestyles.
    Academic Requirements
  • Support your arguments with references from at least five recent scholarly journal articles (published within the last 7–10 years), in addition
    to the prescribed textbook.
  • Use APA 7th edition for in-text citations and the reference list.
  • Ensure your response demonstrates critical analysis, application of theory, and integration of evidence-based literature.
    Assessment 1 – Case Study
    Kalina and Yara are 22-year-old identical twin sisters who were born and raised in Dubbo, a large regional town in New South Wales. Their early
    childhood was unsettled. Their mum, who was raising them on her own, struggled with alcohol misuse and wasn’t able to provide consistent care.
    When the twins were three years old, they were placed in foster care and grew up in separate homes.
    Kalina was placed with foster parents who had no other children. They gave her a lot of one-on-one attention and supported her schooling by
    enrolling her in a private school in Dubbo. Her foster family also encouraged her to take part in community sports and activities. As a young adult,
    Kalina has continued on this path. She is now studying a Master’s degree at university in Sydney, is very committed to her studies, and has built a
    close circle of supportive friends. She is active in student clubs, fitness groups, and sporting teams. While generally calm and well-mannered, Kalina
    often demonstrates vocal outbursts, particularly when faced with defeat in sporting matches.
    Yara went to live with foster parents in Dubbo who often cared for several foster children at once. The home was busy and at times unpredictable,
    with children coming and going. She went to the local public school, where she struggled academically and often clashed with teachers. Yara
    currently has no job and spends most of her day sleeping and her nights socialising with a group of local young adults, often engaging in excessive
    alcohol consumption. When drinking, she frequently becomes irritable with her friends, displaying aggressive behaviour and intimidating them with
    threats of violence.

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