A cognitive psychologist measures the time, in seconds, taken by 40 participants to complete a complex spatial puzzle. Which classification of data has been collected, and which graphical representation is most appropriate to show the distribution of these completion times?
Nominal data, displayed using a bar chart
Ordinal data, displayed using a bar chart
Interval (continuous) data, displayed using a bar chart
Interval (continuous) data, displayed using a histogram
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.