| Clue | Source | Date |
|---|---|---|
| Psychologist who proposed a hierarchy of needs | The Atlantic | 25 Oct 2026 |
| Psychologist who created a notable hierarchy | LA Times Daily | 27 Jun 2026 |
| Psychologist with a well-known hierarchy | ||
| Psychologist Abraham | Wall Street Journal | 07 Jan 2017 |
| Psychologist Abraham known for his "hierarchy of needs" |