A software quality lead is investigating whether introducing a 10-minute guided mindfulness session before work reduces the frequency of coding errors (such as syntax mistakes or logic bugs) detected during peer reviews.
She conducted an experiment using a sample of 10 junior developers obtained via convenience sampling. For one work week (Week 1), developers recorded the number of coding errors identified in their code during peer reviews. The following week (Week 2), developers completed a daily 10-minute guided mindfulness session before starting their work, and their peer review errors were again recorded. The data collected is presented below.
| Developer | Number of coding errors detected during peer reviews | |
|---|---|---|
| Without mindfulness sessions (Week 1) | With mindfulness sessions (Week 2) | |
| A | 18 | 12 |
| B | 9 | 11 |
| C | 22 | 14 |
| D | 14 | 8 |
| E | 15 | 13 |
| F | 6 | 3 |
| G | 11 | 11 |
| H | 26 | 19 |
| I | 10 | 11 |
| J | 21 | 15 |
Outline one advantage of having quantitative data in this study.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.