A psychologist is investigating how people use a public library. She carries out her own interviews with library users. She also uses borrowing records collected by the library during the previous year.
Identify whether the interviews are primary or secondary data.
Identify whether the borrowing records are primary or secondary data.
Give one limitation of using the borrowing records in this investigation.
173 exam-style questions on OCR GCSE Psychology 7.3 Analysing Research, covering 7.3.1 Types of Data, 7.3.2 Measures of central tendency, 7.3.3 Other descriptive statistics, 7.3.4 Tables, Charts and Graphs, 7.3.5 Reliability, 7.3.6 Validity and effects on validity, and 7.3.7 Sources of bias. Each one has a worked solution and a mark scheme showing where the marks go.