An investigator wanted to see if bilingualism affects the speed of semantic processing. They measured the time taken (in seconds) to identify grammatical errors in a text.
The results are shown in Table 1 below.
| Monolingual speakers | Bilingual speakers | |
|---|---|---|
| Mean response time (seconds) | 2.4 | 1.8 |
State why an 'independent groups' design is suitable for this investigation.
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.