Peter York is Principal at BCT Partners. He has over 20 years of experience as a consultant and researcher in the evaluation and nonprofit fields, as well as a national spokesperson for social impact and impact measurement issues. He has spent the last nine years developing analytic techniques that leverage machine learning algorithms and administrative data to create predictive, prescriptive, and rigorous evaluation (causal) models and tools for social change agents in many fields, including child welfare, juvenile justice, workforce development, adult justice and child mental health.