| Subjective
Criteria |
| Illustrations: Some support |
| Simple graphics, not necessary to text |
| Inferences: Some implications |
| Vocabulary: Some difficult words |
| Language: Few descriptive words |
| Sentences: Multiple phrases |
| Text structure: Formal |
| Inferences: Several Implications |
| Complexity: Several unrelated ideas |
| Concepts: Abstract/Complex Environmental |
| Mature concepts: With common experiences or clear fantasy |