Which statement about types of data is correct? Shade one box.
Answers collected by the researcher for this study are primary data.
Answers given by participants are always secondary data.
Numerical answers are secondary data even when collected first-hand.
Published census figures become primary data when used in a new study.
56 exam-style questions on Oxford AQA IGCSE Psychology 1.5 Data handling, covering 1.5.1 Quantitative and qualitative data, 1.5.2 Primary and secondary data, 1.5.3 Mathematical expressions, 1.5.4 Measures of central tendency and range, 1.5.5 Frequency tables and diagrams, 1.5.6 Charts for data display, and 1.5.7 Normal distribution. Each one has a worked solution and a mark scheme showing where the marks go.