The current investigation replicated and extended previous research on training of behavior professionals to implement functional assessment and analysis procedures. Specifically, the study extended procedures described by Metras to train board certified behavior analysts (BCBAs) to administer two components of the Interview Informed Synthesized Contingency Analyses (IISCA) by: (1) conducting the study in the context of a large residential/training facility for adults with ID, (2) including a participant who served as a behavior analyst for a caseload of individuals who lived and received services at the facility, and (3) adjusting the vignettes and interview scripts to reflect the change in context. This current study shows that, following a brief training sequence, the participant was able to accurately administer the open-ended interview and construct a synthesized test and control condition.