This detailed Cambridge International IGCSE Sociology 0495 Research Methods PowerPoint focuses on secondary data and evidence, aligned with Topic 1.2: Secondary Evidence. It is designed for Year 10 Sociology students and helps learners understand how sociologists use existing information as evidence and how to evaluate its usefulness.
Students begin by distinguishing between data and evidence and then compare primary and secondary data, with a clear emphasis on the fact that secondary data has already been collected by someone else, often for a different purpose.
The lesson covers the four main types of secondary evidence students need to recognise:
Official statistics
Historical and personal documents
Digital sources
Media content
Each type is explored through examples, strengths and limitations. Students also examine the difference between qualitative and quantitative secondary data, helping them avoid the common misconception that secondary evidence is always numerical.
The resource develops evaluation skills using key concepts such as validity, reliability, representativeness, bias, origin, purpose, coverage and usefulness. Students are encouraged to ask who produced a source, why it was created and whether it is suitable for a particular sociological research question.
The lesson also includes a worked example on researching school absence, where students compare official attendance statistics, school policy documents and news reports. This supports application, evaluation and the use of triangulation by combining primary and secondary evidence.
The resource includes:
Clear lesson objectives
Starter activity: data or evidence?
Primary vs secondary data
Official statistics
Historical and personal documents
Digital and social media sources
Media content and content analysis
Quantitative vs qualitative secondary data
Evaluation checklist for secondary evidence
Validity, reliability and bias
Worked sociological research example
Strengths and limitations
Cambridge-style exam practice
Source detective plenary
Exit ticket
Ideal for Cambridge IGCSE Sociology 0495, this resource can be used as a complete classroom lesson, revision resource, independent learning activity or preparation for Paper 1 Research Methods questions.