Effective services are those that are recognized, valued and used by those who should be served. Fundamental to developing and providing quality services is conducting research that explores fundamental cultural values and expectations. The research must then yield practical, sustainable means to develop and enact effective, population-based programs and, evidence that informs policy. LTG has designed and conducted sensitive research with complex populations that has honored culture and yielded results that have been used in designing and developing quality program. In this section are a few examples of that work.