Developmental psychology examines change and continuity across the lifespan. It considers physical, cognitive and social or emotional processes and their relationships. A developmental explanation should identify what is changing, how it is studied and what the evidence can establish.
Define the domain and period
A question may concern memory, social relationships or another process at a particular period of life. State the scope instead of treating development as a single uniform change. Childhood is important, but the field is not limited to children. Use the course’s terminology when describing developmental domains and their overlap.
Distinguish a theory from a fixed rule
Theories organise questions and explanations. A stage model and a continuous-change account may make different assumptions. Explain the theory relevant to the task and evaluate its use against evidence. Do not assume a named stage describes every person identically or provides a diagnosis.
Consider context and variation
Development can be examined in relation to experience, environment and biological processes. Avoid reducing a complex finding to a single cause without an appropriate design. Distinguish a group-level pattern from a conclusion about one individual. Identify which population and setting the study actually represents.
Read research designs carefully
A study comparing different age groups is not the same as following the same people over time. Consider what each design can establish and possible alternative explanations. Keep measurement, sampling and interpretation connected. A reported association needs more analysis before it becomes a causal claim.
Write a proportionate conclusion
Use the evidence to answer the specific question and acknowledge limitations. Do not apply a classroom model as a personal assessment of someone’s development or mental health. Cite the theory and empirical sources accurately. A strong academic explanation makes the relationship between the concept, method and finding visible.
Sources and further reading
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