Longitudinal studies

A research method that involves collecting data over an extended period of time to track changes and developments. Favoured by positivists and anti positivists depending on whether the study is focusing on quantitative and qualitative experiences.

British Cohort study

Advantages

Tracks changes over time- Helps identify trends and long term effects

More reliable then cross sectional studies

Can establish cause and effect- Shows how certain factors influence outcomes

Rich, detailed data- Provides deep insights into human behaviour and social changes

Disadvantages

Time consuming and expensive- requires long term commitment and funding

Sample attrition- People drop out which reduces reliability

Researcher bias- If researchers change then interpretations may vary

External factors can affect results