Learning Graph Quality Metrics Report¶
Overview¶
- Total Concepts: 300
- Foundational Concepts (no prerequisites, other concepts depend on them): 4
- Terminal Nodes (nothing depends on them, but have prerequisites): 147
- Orphaned Nodes (completely disconnected, no edges): 0
- Concepts with Dependencies: 296
- Average Dependencies per Concept: 1.51
Graph Structure Validation¶
- Valid DAG Structure: ✅ Yes
- Self-Dependencies: None detected ✅
- Cycles Detected: 0
Foundational Concepts¶
These concepts have no prerequisites:
- 1: Attention
- 3: Hyperactivity
- 4: Impulsivity
- 6: Neurodevelopmental Disorder
Dependency Chain Analysis¶
- Maximum Dependency Chain Length: 15
Longest Learning Path:¶
- Attention (ID: 1)
- Attention Regulation (ID: 2)
- ADHD (ID: 7)
- DSM-5 Definition Of ADHD (ID: 13)
- Symptom Criteria (ID: 54)
- Diagnostic Evaluation (ID: 101)
- Evaluation Report (ID: 118)
- What A Diagnosis Means (ID: 125)
- Identity After Diagnosis (ID: 231)
- Self-Advocacy (ID: 233)
- Requesting Accommodations (ID: 257)
- Workplace Accommodations (ID: 265)
- Workplace Disclosure (ID: 266)
- Working With A Manager (ID: 270)
- Handling Feedback At Work (ID: 274)
Terminal Nodes Analysis¶
Terminal nodes are concepts that nothing else depends on but have prerequisites. They represent natural endpoints of learning paths — culminating or specialized concepts.
- Total Terminal Nodes: 147 (49.0% of all concepts)
- Healthy Range: 5-40% of total concepts
Concepts at the end of learning paths:
- 9: Neurotypical Brain
- 12: ADD Vs ADHD Terminology
- 15: Laziness Myth
- 16: Willpower Myth
- 17: ADHD As Regulation Difference
- 21: Environmental Risk Factors
- 32: Response Inhibition
- 36: Self-Monitoring
- 38: Norepinephrine
- 43: Arousal Regulation
- 46: Neuroimaging Findings
- 47: Heritability Research
- 48: ADHD And Memory
- 53: Combined Presentation
- 55: Symptom Thresholds
- 60: Mind Wandering
- 62: Fidgeting
- 63: Excessive Talking
- 64: Interrupting
- 67: Task Switching Difficulty
...and 127 more
Orphaned Nodes Analysis¶
Orphaned nodes are completely disconnected concepts with no inbound AND no outbound edges. These indicate a quality problem — every concept should connect to the graph.
- Total Orphaned Nodes: 0
✅ No orphaned nodes detected. All concepts are connected to the graph.
Connected Components¶
- Number of Connected Components: 1
✅ All concepts are connected in a single graph.
Indegree Analysis¶
Top 10 concepts that are prerequisites for the most other concepts:
| Rank | Concept ID | Concept Label | Indegree |
|---|---|---|---|
| 1 | 7 | ADHD | 26 |
| 2 | 126 | Comorbidity | 14 |
| 3 | 101 | Diagnostic Evaluation | 12 |
| 4 | 171 | Multimodal Treatment | 12 |
| 5 | 30 | Executive Function | 9 |
| 6 | 146 | Medication Overview | 9 |
| 7 | 191 | Externalizing Memory | 8 |
| 8 | 4 | Impulsivity | 7 |
| 9 | 26 | Brain Development | 7 |
| 10 | 76 | ADHD In Childhood | 7 |
Outdegree Distribution¶
| Dependencies | Number of Concepts |
|---|---|
| 0 | 4 |
| 1 | 155 |
| 2 | 135 |
| 3 | 4 |
| 4 | 1 |
| 5 | 1 |
Recommendations¶
- ℹ️ High terminal node percentage (49.0%): Consider if some terminal concepts should be prerequisites for advanced concepts
- ✅ DAG structure verified: Graph supports valid learning progressions
Report generated by learning-graph-reports/analyze_graph.py