Item MO022004: A model is similar to the thing it represents in some ways but different in other ways.
In what ways is a model similar to the thing it represents?
- A model must be identical to the thing it represents in every way.
- 
    A model must be identical to the thing it represents in every way
 except that it can be made out of different materials.
- 
    A model must be identical to the thing it represents in every way
 except that it can be a different size.
- A model can be different from the thing it represents in either its size or the materials it is made of.
| Answer Choice | Overall | Grades | Gender | Primary Language | |||
|---|---|---|---|---|---|---|---|
| n = 9412 | 6–8 n = 5839 | 9–12 n = 3556 | Male n = 4497 | Female n = 4714 | English n = 8456 | Other n = 731 | |
| A. | 7% | 8% | 4% | 8% | 5% | 6% | 8% | 
| B. | 11% | 13% | 8% | 12% | 11% | 11% | 17% | 
| C. | 20% | 20% | 19% | 21% | 18% | 19% | 24% | 
| D. | 62% | 58% | 69% | 59% | 66% | 64% | 50% | 

