A trajectory group refers to a group of individuals who are moving or progressing together in a specific direction or path. It implies that they share a common goal or objective and are working towards it collectively. Full definition
Results showed that membership in a high and rising trajectory group predicted rule - breaking behaviors and borderline personality features. (cambridge.org)
Thus, it is somewhat surprising that the presence of siblings had no differentiating effect on trajectory group membership. (journals.plos.org)
Low, medium, and high rejection trajectory groups were identified using growth mixture models. (link.springer.com)