Dr. Aris investigated spatial working memory errors in patients with localized cerebellar damage. Five patients completed a virtual maze navigation task, and the researcher recorded the number of directional errors each participant made during the session.
Calculate the standard deviation for the maze error scores using the data in Table 1. Show your working and give your answer to two decimal places.
Table 1: Maze error scores for five cerebellar damage patients
| Patient | Directional errors |
|---|---|
| P1 | 5 |
| P2 | 8 |
| P3 | 11 |
| P4 | 12 |
| P5 | 14 |
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.