Philip J. Leaf

Multiple imputation by chained equations: what is it and how does it work?

Melissa Azur, Elizabeth A. Stuart, Constantine Frangakis et al. · International Journal of Methods in Psychiatric Research · 2011 · 3.5K citations · Full text

Public Health, Biostatistics, Psychiatry +13

The epidemiology of co-occurring addictive and mental disorders: Implications for prevention and service utilization.

Ronald C. Kessler, Christopher B. Nelson, Katherine McGonagle et al. · American Journal of Orthopsychiatry · 1996 · 1.4K citations · Full text

Medicine, Psychiatry, Psychology +17

Examining the Effects of Schoolwide Positive Behavioral Interventions and Supports on Student Outcomes

Catherine P. Bradshaw, Mary M. Mitchell, Philip J. Leaf · Journal of Positive Behavior Interventions · 2009 · 854 citations

Education, Elementary Education, Organizational Behavior +17

The prevalence and correlates of untreated serious mental illness.

Ronald C. Kessler, Patricia A. Berglund, Martha L. Bruce et al. · PubMed · 2001 · 786 citations · Full text

Medicine, Psychiatry, Behavioral Health +13

Examining the Overlap in Internet Harassment and School Bullying: Implications for School Intervention

Michele L. Ybarra, Marie Diener‐West, Philip J. Leaf · Journal of Adolescent Health · 2007 · 770 citations · Full text

Social Sciences, Educational Psychology, Social Psychology +16