Which statement about types of data is correct? Shade one box.
Qualitative data are descriptions in words rather than numbers.
Primary data are taken from an official published source.
Quantitative data are descriptions that cannot be counted.
Secondary data are collected first-hand by the researcher.
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.