William B. Simpson

Lecturer of Business Administration
Principal Statistician

Unit: Negotiation, Organizations & Markets

Contact:

(617) 495-6539

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William Simpson is a Lecturer in the Negotiations, Organizations, and Markets Unit and Principal Statistician in Research Computing Services at Harvard Business School. He earned his B.S. in Physics from California Institute of Technology, M.S. in Computer Science from University of Michigan, and Ph.D. in Clinical Psychology from Boston University.

Dr. Simpson teaches the course, Seminar in Applied Statistical Methods, for doctoral students working on dissertation research, and the statistics module of Theory and Practice of Research.

As a statistician with Research Computing Services, he has provided statistical support and data analysis for a wide variety of faculty research projects. He has also been a statistical consultant for a number of organizations including Cambridge Hospital, Children’s Hospital, the Trauma Center at Justice Resource Institute, Abt Associates, Verizon, and the Forum Corporation.

    Publications

    Journal Articles

    1. A Randomized Clinical Trial of EMDR, Fluoxetine and Pill Placebo in the Treatment of PTSD: Treatment Effects and Long-term Maintenance

      Keywords: Health Testing and Trials; Health Care and Treatment; Health Disorders;

      Citation:

      van der Kolk, Bessel A., Joseph Spinazzola, Margaret E. Blaustein, James Hopper, Elizabeth Hopper, Deborah Korn, and William B. Simpson. "A Randomized Clinical Trial of EMDR, Fluoxetine and Pill Placebo in the Treatment of PTSD: Treatment Effects and Long-term Maintenance." Journal of Clinical Psychiatry 68, no. 1 (January 2007).
    2. Preliminary Evidence for Parasympathetic Influence on Basal Heart Rate in Posttraumatic Stress Disorder

      Keywords: Health; Information; Health Disorders;

      Citation:

      Hopper, J. W., J. Spinazzola, W. B. Simpson, and B. A. van der Kolk. "Preliminary Evidence for Parasympathetic Influence on Basal Heart Rate in Posttraumatic Stress Disorder." Journal of Psychosomatic Research 60, no. 1 (January 2006): 83–90.
    3. Prevalence and Incidence of Androgen Deficiency in Middle-Aged and Older Men: Estimates from the Massachusetts Male Aging Study

      Keywords: Information; Health; Gender Characteristics; Massachusetts;

      Citation:

      Araujo, Andre B., Amy B. O'Donnell, Donald J. Brambilla, William Simpson, Christopher Longcope, Alvin M. Matsumoto, and John B. McKinlay. "Prevalence and Incidence of Androgen Deficiency in Middle-Aged and Older Men: Estimates from the Massachusetts Male Aging Study." Journal of Clinical Endocrinology & Metabolism 89, no. 12 (December 2004): 5920–5926.
    4. Telephone Scatologia: Comorbidity with other Paraphilias and Paraphilia-Related Disorders

      Keywords: Health Disorders;

      Citation:

      Price, M., M. Kafka, M. L. Commons, T. G. Gutheil, and W. Simpson. "Telephone Scatologia: Comorbidity with other Paraphilias and Paraphilia-Related Disorders." International Journal of Law and Psychiatry 25, no. 1 (January–February 2002): 37–49.
    5. Is Absorption a Diathesis for Dissociation in Sexually and Physically Abused Patients?

      Keywords: Health;

      Citation:

      Kunzendorf, R. G., D. M. Hulihan, W. Simpson, N. Pritykina, and K. Williams. "Is Absorption a Diathesis for Dissociation in Sexually and Physically Abused Patients?" Imagination, Cognition and Personality 17, no. 4 (1997): 277–282.
    6. Malnutrition in Hospitalized Pediatric Patients: Current Prevalence

      Keywords: Health; Food;

      Citation:

      Hendricks, K. M., C. Duggan, L. Gallagher, A. C. Carlin, D. S. Richardson, S. B. Collier, W. Simpson, and C. Lo. "Malnutrition in Hospitalized Pediatric Patients: Current Prevalence." Archives of Pediatrics & Adolescent Medicine 149, no. 10 (October 1995): 1118–1122.

    Cases and Teaching Materials

    1. Qualitative Response Models: Ordinal and Multinomial Models

      Keywords: Mathematical Methods;

      Citation:

      Simpson, William B. "Qualitative Response Models: Ordinal and Multinomial Models." 2002. Electronic.
    2. Interaction Terms in Regression

      Keywords: Mathematical Methods;

      Citation:

      Simpson, William B., and Kimball Lewis. "Interaction Terms in Regression." 2001. Electronic.

    Presentations

    1. What is the Best Measure of Adiposity for Predicting Testosterone? Results from the Massachusetts Male Aging Study

      Keywords: Measurement and Metrics; Health Testing and Trials; Age Characteristics; Gender Characteristics; Massachusetts;

      Citation:

      Simpson, William B., Frances J. Hayes, Andre B. Araujo, and John B. McKinlay. "What is the Best Measure of Adiposity for Predicting Testosterone? Results from the Massachusetts Male Aging Study." Paper presented at the Enocrine Society Annual Meeting, New Orleans, LA, June 15, 2004.
    2. Secular Changes in Testosterone over 17 Years: Results from the Massachusetts Male Aging Study

      Keywords: Change; Health; Age Characteristics; Gender Characteristics; Massachusetts;

      Citation:

      Simpson, William B., Andre B. Araujo, Christopher Longcope, and John B. McKinlay. "Secular Changes in Testosterone over 17 Years: Results from the Massachusetts Male Aging Study." Paper presented at the American Society of Andrology Annual Meeting, Baltimore, MD, April 25, 2004.
    3. The Influence of Time Pressure on Creative Thinking in Organizations

      Keywords: Creativity; Cognition and Thinking;

      Citation:

      Amabile, Teresa M., J. S. Mueller, W. B. Simpson, L. Fleming, and C. N. Hadley. "The Influence of Time Pressure on Creative Thinking in Organizations." Paper presented at the Academy of Management Annual Meeting, Seattle, WA, August 01–06, 2003.
    4. Psychological Sequelae of Early Trauma II: Comorbid Diagnoses or Diagnostic Entity?

      Keywords: Health; Health Disorders;

      Citation:

      Blaustein, Margaret E., Joseph Spinazzola, William B. Simpson, and Bessel van der Kolk. "Psychological Sequelae of Early Trauma II: Comorbid Diagnoses or Diagnostic Entity?" Paper presented at the International Society for Traumatic Stress Studies Annual Meeting, December 10, 2001.
    5. QAP: The Quadratic Assignment Procedure

      Keywords: Mathematical Methods;

      Citation:

      Simpson, William B. "QAP: The Quadratic Assignment Procedure." Paper presented at the North American Stata Users' Group Meeting, March 20–21, 2001.
    6. Psychological Sequelae of Early Trauma: Comorbid Diagnoses or Diagnostic Entity?

      Keywords: Health; Health Disorders;

      Citation:

      Blaustein, Margaret E., Joseph Spinazzola, William B. Simpson, and Bessel A. van der Kolk. "Psychological Sequelae of Early Trauma: Comorbid Diagnoses or Diagnostic Entity?" Paper presented at the International Society for Traumatic Stress Studies Annual Meeting, San Antonio, TX, November 01–05, 2000.
    7. Making Friends with ODS and PROC TEMPLATE

      Keywords: Software;

      Citation:

      Simpson, William B. "Making Friends with ODS and PROC TEMPLATE." Boston Area SAS Users Group, Boston, MA, March 1, 2000.
    8. An Introduction to Mixed Models in SAS

      Keywords: Software; Mathematical Methods;

      Citation:

      Simpson, William B. "An Introduction to Mixed Models in SAS." Boston Area SAS Users Group, Boston, MA, December 1, 1998.
    9. Multidimensional Scaling of DSM-III Personality Disorders in Two Populations

      Keywords: Health; Health Disorders; Demographics;

      Citation:

      Simpson, W. B., M. J. Lyons, L. Young, and M. T. Tsuang. "Multidimensional Scaling of DSM-III Personality Disorders in Two Populations." Paper presented at the Annual Convention of the American Psychological Association, Boston, MA, August 08–12, 1990.

    Other Publications and Materials

    1. Borderline Personality Disorder: Dimension or Category? A Maximum Covariance Analysis

      Keywords: Health Disorders; Mathematical Methods;

      Citation:

      Simpson, William B. "Borderline Personality Disorder: Dimension or Category? A Maximum Covariance Analysis." Ph.D. diss., Boston University, May 1994.

      Research Summary

    1. Statistical Methodology

      William Simpson is developing methods of inference to use when assumptions of standard models are not met. He has created a hypothesis test to use for ipsative variables that adjusts for the non-zero correlations among variables expected under the null hypothesis. He has developed a number of extensions of the quadratic assignment procedure -- a method used for dyadic data in social network analysis -- for generalized linear models, multiple networks, and network panel data.

    2. Clinical Research

      Dr. Simpson has been a consulting statistician for clinical research, especially in studies of post-traumatic stress disorder. Most recently, he has been involved in a clinical trial comparing a pharmacological treatment and an exposure-based psychological treatment for post-traumatic stress disorder.