The Tier 2 Program is a more selective prevention model directly targeting students with greater psychosocial needs identified by the school social work service providers. The label "at-risk" is intentionally avoided because the term denotes a very negative stigma in Chinese culture, and therefore discourages participation in the program. It should be noted that while Chinese social work agencies commonly target students with greater psychosocial needs, these PYD programs have rarely undergone thorough systemic evaluation and documentation.[18]