An investigator conducted an experiment into operant conditioning. Table 1 shows the progress made by a dog learning to press a lever to release a food reward across 8 trials.
Table 1: Time taken for the dog to operate the lever across 8 attempts
| Attempt | Time taken for the dog to operate the lever (seconds) |
|---|---|
| 1 | 96 |
| 2 | 84 |
| 3 | 60 |
| 4 | 45 |
| 5 | 32 |
| 6 | 18 |
| 7 | 12 |
| 8 | 6 |
The researcher compared the time taken for the dog to successfully operate the lever at the first attempt with the time taken for the eighth attempt. He found that after learning had taken place, the dog's performance speed was:
8 times faster than it was at the start.
12 times faster than it was at the start.
16 times faster than it was at the start.
24 times faster than it was at the start.
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.