The American Psychological Association defines Quantitative Psychology as "the study of methods and techniques for the measurement of human attributes, the statistical and mathematical modeling of psychological processes, the design of research studies, and the analysis of psychological data".
In August 2005, the APA expressed the need for more quantitative psychologists in the industry—for every PhD awarded in the subject, there were about 2.5 quantitative psychologist position openings. Currently, 23 American universities offer Ph.D. programs in quantitative psychology within their psychology departments (and additional universities offer programs that focus on but do not necessarily encompass the field). There is also a comparable number of Master-level programs in quantitative psychology in the US.
Quantitative Psychology specializes in the measurement, methodology and research design and analysis relevant to data in the social sciences. "The Research in study of Quantitative psychology develops psychological theory in relation to mathematics and statistics. Elaborating the existing methods and developing new concepts, quantitative psychology involves much more than "applications" of statistics and mathematics." 
Quantitative psychology has two major subfields, psychometrics and mathematical psychology. Research in psychometrics develops methods of practice and analysis of psychological measurement, for example, developing a questionnaire to test memory and methods of analyzing data from that questionnaire. Research in mathematical psychology develops novel mathematical models that describe psychological processes.
Quantitative psychology is served by several scientific organizations. These include the Psychometric Society, Division 5 of the American Psychological Association (Evaluation, Measurement and Statistics), the Society of Multivariate Experimental Psychology, and the European Society for Methodology. Associated disciplines include statistics, mathematics, educational measurement, educational statistics, sociology, and political science. Several scholarly journals reflect the efforts of scientists in these areas, notably Psychometrika, Multivariate Behavioral Research, Structural Equation Modeling and Psychological Methods.
The following is a list of graduate schools that offer a degree in quantitative psychology:
- Arizona State University
- Claremont Graduate University
- Fordham University
- Georgia Institute of Technology
- James Madison University
- Kent State University
- Michigan State University
- Ohio State University
- Ohio University
- Oregon State University
- Purdue University
- University of California, Davis
- University of California, Los Angeles
- University of California, Merced
- University of Connecticut
- University of Illinois at Urbana Champaign
- University of Kansas
- University of Louisville
- University of Minnesota
- University of Missouri, Columbia
- University of North Carolina Chapel Hill
- University of Notre Dame
- University of Southern California
- University of Virginia
- Vanderbilt University
- Quantitative Psychology
- Report of the Task Force for Increasing the Number of Quantitative Psychologists, page 1. American Psychological Association. Retrieved February 15, 2012
- Introduction to Quantitative Psychology page 2. American Psychological Association. Retrieved February 15, 2012.
- Graduate Studies in Psychology
- Quantitative Psychology — UCLA Psychology Department: Home
- Quantitative Psychology For Measuring The Human Attributes
- Mathematical Psychology