Dr Aris is investigating whether dual-task interference affects spatial working memory performance. She recruits 10 participants to perform a computerised spatial navigation task under two experimental conditions:
The navigation task is scored out of 25, with higher scores indicating superior spatial working memory performance.
The raw data from her study are shown in the table below:
| Participant | Score in the 'Finger-tapping' condition | Score in the 'Random-generation' condition |
|---|---|---|
| 1 | 18 | 12 |
| 2 | 22 | 9 |
| 3 | 11 | 15 |
| 4 | 14 | 21 |
| 5 | 8 | 11 |
| 6 | 19 | 14 |
| 7 | 15 | 13 |
| 8 | 20 | 18 |
| 9 | 13 | 10 |
| 10 | 17 | 16 |
Calculate the range of spatial working memory scores for both conditions of this study.
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