var fDesc=new Array(); fDesc[0] = "This program calculates agreement indices and many medical diagnostic and decision-oriented indices for 2 x 2 classification tables.

Just run the mouse cursor over an output cell, and the hint will appear. More extensive information is available in the on-line help. It is recommended as a teaching-support utility for students etc.

Good for looking at "what-if" scenarios and the massive discrepancies that can sometimes be obtained between different measures of dichotomous agreement. Specifically, the program calculates the following measures of agreement from a 2x2 table


Main features:
-Sensitivity
-Specificity
-Kraemer's Quality Indices
-Positive Power of Prediction
-Negative Power of Prediction
-Prediction Efficiency/Classification Accuracy
-Relative Improvement Over Chance
-Base Rate/Prevalence
-Relative Risk
-Odds of Outcomes
-Odds Ratio
-False Positive Rate
-False Negative Rate
-Cohen's d (d-prime within ROC)
-Estimated r from d-prime"; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }