Research Article
Design of Oral English Teaching Based on Embedded Microprocessor
| ā | Group 1 | Group 2 | ā | Group 1 | Group 2 |
| Number of testers | 50 | 53 | Difficulty | 0.57 | 0.63 | Highest score | 13.5 | 13.5 | Reliability | 0.75 | 0.69 | Lowest score | 4.2 | 3 | Discrimination | 0.46 | 0.66 | Mean score | 11.2 | 11 | Standard deviation | 2.5 | 2.3 |
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