Stats Assistance is a statistical consulting firm with expertise in education, health care, and social science research. Our team of PhD-level professionals has expertise in: psychometrics, reliability analysis, validity analysis, mean difference analysis, analysis of variance, growth modeling, latent analysis, factor analysis, and item analysis. Members of the Stats Assistance team have consulted members of the Department of Education, doctoral students, and university professors. We have worked with first-hand data and secondary data (i.e. Early Childhood Longitudinal Study – Birth and Kindergarten, the National Education Longitudinal Study, the Common Core Data, and the National Longitudinal Survey of Youth).