A researcher asked six pupils to complete a find-the-differences task. The researcher recorded how long each pupil took. After the task, each pupil wrote a comment about what helped or delayed them.
| Completion time (seconds) |
|---|
| 11 |
| 14 |
| 16 |
| 17 |
| 20 |
| 64 |
State the median completion time.
Explain why the median is more suitable than the mean for these completion times.
State whether the pupils' written comments are quantitative or qualitative data.
The pupil who took 64 seconds wrote, “I kept checking the same area and missed a difference near the edge.” Explain what this comment helps the researcher understand about the pupil's completion time.
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.