About Us

The use of this site is free and always will be. 

We provide researchers such as behavioral and social scientists with tools and education related to the following aspects of study design:

  • Calculating power and sample size for any univariate or multivariate test for the
    general linear multivariate model, assuming fixed predictors.
  • Producing confidence intervals on power estimates for designs with fixed
  • Producing power calculations for designs with a single Gaussian covariate.
  • Supporting designs with unequal group sizes, and complicated covariance
  • Creating basic power curves.

To calculate power or sample size, click on the Home tab above and then on the orange ‘Calculate Sample Size Now’ button.  For educational materials related to study design, please peruse the papers found under the ‘Resources’ tab.


Funding Information:

Copyright 2017 University of Colorado Denver. GLIMMPSE is released under the GNU General Public License, version 2.

GLIMMPSE version 2.2.5 is currently funded by NIH/NIGMS 9R01GM121081-05 to the University of Colorado Denver (Dana Dabelea, Deborah H. Glueck, Keith E. Muller MPI), and by NIH/NIGMS 5R25GM111901-03 to the University of Florida (Deborah H. Glueck, Keith E. Muller MPI). Explanatory material mirrors material developed for NIH/NLM 5G13LM011879-03, awarded to the University of Florida (Deborah H. Glueck, Keith E. Muller, MPI).

Previous funding was provided by NIH/NIDCR 1 R01 DE020832-01A1 to the University of Florida (Keith E. Muller, PI; Deborah Glueck, University of Colorado site PI) and by an American Recovery and Re-investment Act supplement (3K07CA088811-06S) for NIH/NCI grant K07CA088811, awarded to the University of Colorado Denver (Deborah H. Glueck, PI).


Please Note:

This website provides free access to software and other educational materials helpful with calculating power and sample size.  However, it does not provide consultation regarding the calculation of power or sample size, or any other matter except for the use of the above-mentioned software and materials.