Sample adolescent longitudinal analysis matrix
| Themes | T1 | T2 | T3 |
| Theme A (eg, change in acceptance over time) | Change from being worried about acceptance within the family to acceptance by peers. Moved towards acceptance after admission | Idea from adolescent | Idea from adolescent |
| Theme B (eg, changes in hope over time) | Change from having no hope for the future to making career plans | Idea from adolescent | Idea from adolescent |