var fDesc=new Array(); fDesc[0] = "BetaBuster is a GUI that can be used to obtain specific Beta prior distributions for Se, Sp and Prevalence.

BetaBuster was designed by Dr. Chun-Lung Su for the purpose of obtaining specific Beta prior distributions based on scientific input for quantities like the sensitivity or speciticity of a diagnostic test. For example, if a scientist is asked for their best guess for the Se of a particular test and the answer is 0.9, and moreover, if they are also willing to assert that they are 95% sure that the Se is greater than 0.75, Betabuster will take this information and, obtain the unique Beta distribution that has mode (value with the greatest density/plausibility) equal to 0.9 and which has 95% of the area to the right. In fact, using BetaBuster, we obtain a Beta(22.99,3.44) distribution, which is also plotted in the process. This is accomplished by putting in the above input information and then clicking on "set priors"."; 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 = ''; } }