I have 10 years of experience, and specialize in the field of statistics with specific knowledge in the areas of structural equation modeling and hierarchical linear modeling. I have published on such topics as structural equation analysis, hierarchical linear modeling and motivation and math achievement. I have testified 95 times on topics such as Medicare and Medicaid fraud cases, utility fee differentials and statistical methodology disputes. I have published books on such topics as structural equation analysis, mathematics achievement, and mathematics performance.