The information-based measure of disagreement (IBMD)1 assesses disagreement between two sets of matched numerical observations. It is appropriate for ratio-scale variables with positive values and ranges from 0 (no disagreement) to 1. The 95% confidence interval is estimated using a bootstrap procedure.
Please, enter your data to assess the disagreement between two measurements.
Each pair of observations must be in a different row. The two observations can be space, or tab-delimited.
The birthweigt(grams) was measured in the same 5 newborns with two diferent observers (A and B).
|newborn||observer A||observer B|
The data can be entered like this:
If you use this software in preparing a research paper, grant proposal, or other publication, I would appreciate your acknowledging it by citing it in the references.
Costa Santos, C (2012). Information Based Measure of Disagreement On-line Calculator [Computer software]. Retrieved month day, year, from http://disagreement.med.up.pt
- Costa-Santos C, Antunes L, Souto A, Bernardes J. Assessment of disagreement: a new information-based approach. Ann Epidemiol. 2010 Jul;20(7):555-61.
- Henriques T, Antunes L, Bernardes J, Matias M, Sato D, Costa-Santos C. Information-based measure of disagreement for more than two observers: a useful tool to compare the degree of observer disagreement. BMC Medical Research Methodology 2013, 13:47.
Last updated: March 2012