How accurate is the test (are there false negatives or positives)?
As with any biological lab testing, both false positives and false negatives can technically occur. The accuracy and precision of the Clifford Materials Reactivity test is approximately comparable to testing used for evaluation of blood sugar and cholesterol. Based upon the results of multiple samples drawn over a period of several days, the accuracy is about 95% or greater. The precision of repeated testing from a single sample is about 97% or greater.