330.624.11 | AY 2013-2014 - Summer Inst. Term | 2 Credit(s)
WTh 8:30:00 AM
  • Contact Information
  • Course Learning Objectives

    Upon successfully completing this course, students will be able to:

    • Interpret commonly used effect sizes
    • Perform power calculations or sample size estimations for a proposed study
    • Perform simulation-based estimates of power
  • Course Description

    Introduces the concepts of power calculation and sample size estimation. Briefly discusses the theory behind analytic and simulation-based approaches to estimating the power or sample size needed for a proposed hypothesis test. Examines effect sizes and realistic models under which power should be calculated. Discusses effective presentation of power calculations for grant proposals, including graphs. Compares examples of popular software, including R, SAS and STATA.

  • Intended Audience

    Graduate Students, Researchers

  • Methods of Assessment

    Grading Policy: Assessment will be a project consisting of a multi-aim power calculation section for a proposal. Proposal can be from the student’s work, subject to instructor approval, or provided by the instructor.

    Grading Restrictions: Letter grade

  • Prerequisites

    A very basic understanding of statistics.

  • Academic Ethics Code

    The code, discussed in the Policy and Procedure Memorandum for Students, March 31, 2002, will be adhered to in this class:

    Students enrolled in the Bloomberg School of Public Health of The Johns Hopkins University assume an obligation to conduct themselves in a manner appropriate to the University's mission as an institution of higher education. A student is obligated to refrain from acts which he or she knows, or under the circumstances has reason to know, impair the academic integrity of the University. Violations of academic integrity include, but are not limited to: cheating; plagiarism; knowingly furnishing false information to any agent of the University for inclusion in the academic record; violation of the rights and welfare of animal or human subjects in research; and misconduct as a member of either School or University committees or recognized groups or organizations.

  • Disability Support Services

    If you are a student with a documented disability who requires an academic accommodation, please contact Betty H. Addison in the Office of Student Life Services:, 410-955-3034, or 2017 E. Monument Street.