A psychologist investigated operant conditioning in pigeons using a modified Skinner box. The psychologist recorded the time taken (in seconds) for a pigeon to secure a food reward by pecking a target key across 8 consecutive trials. The results are shown in Table 1.
Table 1: Time taken for the pigeon to secure the food reward
| Trial | Time taken for the pigeon to secure the food reward (seconds) |
|---|---|
| 1 | 45 |
| 2 | 38 |
| 3 | 30 |
| 4 | 22 |
| 5 | 15 |
| 6 | 12 |
| 7 | 5 |
| 8 | 1 |
Calculate the mean time taken for the pigeon to secure the food reward. Show your calculations.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.