National Development and Research Institutes, Inc. (NDRI)
Center for Therapeutic Community Research

Therapeutic Community Scale of Essential Elements Questionnaire (SEEQ)
De Leon, G., & Melnick, G. (1993)

The Client Matching Protocol (CMP)
Melnick, G., & De Leon, G. (1998)

Treatment Environmental Risk Index (TERI)
Jainchill, N., Messina, M., & Yagelka, J. (1997)

Program Monitoring Form (PMF)
Sacks, S. (1995)

CTCR Baseline Interview Protocol
De Leon, G. (1992)

Circumstances, Motivation, and Readiness (CMR) Scales for Substance Abuse Treatment
De Leon, G. (1993)

Perception of Treatment Suitability Scales (PTSS)
Melnick, G., & De Leon, G. (1996)

The TC Client Progress Scales (TCCPS)
Jainchill, N., & De Leon, G. (1987)

The Client Assessment Inventory (CAI)
Kressel, D., & De Leon, G. (1998)

The Client Assessment Summary (CAS)
Kressel, D., & De Leon, G. (1998)

The Staff Assessment Summary (SAS)
Kressel, D., & De Leon, G. (1998)