Average frequency of occurrence of each code across the eleven problems
| Code . | Average occurrence . |
|---|---|
| Terminology | |
| Specific terminology (i.e., name of substance) | 4.25/11 |
| General terminology (i.e., name of functional group) | 3.7/11 |
| Explicit features | |
| Atoms (explicit) | 9.8/11 |
| Bonds (explicit) | 4.9/11 |
| Lone pair dots (explicit) | 3.6/11 |
| Charge (explicit) | 4.6/11 |
| Implicit features | |
| Atoms (implicit) | 4.3/11 |
| Bonds (implicit) | 2.5/11 |
| Electrons (implicit) | 3.9/11 |
| Charge (implicit) | 3.5/11 |
| Functional group | 2.6/11 |
| Octet rule | 0.7/11 |
| Nucleophile | 1.8/11 |
| Reasoning a | |
| Sequence without explanation | 2.8/11 |
| Forward Chaining | 5.6/11 |
| Backward Chaining | 3.4/11 |
| Success | 1.7/3 |
| Code . | Average occurrence . |
|---|---|
| Terminology | |
| Specific terminology (i.e., name of substance) | 4.25/11 |
| General terminology (i.e., name of functional group) | 3.7/11 |
| Explicit features | |
| Atoms (explicit) | 9.8/11 |
| Bonds (explicit) | 4.9/11 |
| Lone pair dots (explicit) | 3.6/11 |
| Charge (explicit) | 4.6/11 |
| Implicit features | |
| Atoms (implicit) | 4.3/11 |
| Bonds (implicit) | 2.5/11 |
| Electrons (implicit) | 3.9/11 |
| Charge (implicit) | 3.5/11 |
| Functional group | 2.6/11 |
| Octet rule | 0.7/11 |
| Nucleophile | 1.8/11 |
| Reasoning a | |
| Sequence without explanation | 2.8/11 |
| Forward Chaining | 5.6/11 |
| Backward Chaining | 3.4/11 |
| Success | 1.7/3 |
These add to more than 11 because students could use both backward and forward chaining in the same problem.