# How accurate is radioactive dating of materials

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At other times an additional measurement can eliminate the need for one assumption, although no science can be done without assumptions at some level.Given the complexity of radioactive dating, confirmation bias can also be a problem.This arises when the person performing the analysis has a strong expectation of what the result should be.The procedure, however, is difficult, and many tests have shown that it can be inaccurate, and it is at times not even considered reliable by mainstream scientists.

It is impossible to measure the age of something, except to time it as it actually occurs, so radioactive dating methods calculate the age, based on (i) measurements of quantities of specified materials, (ii) measurements of decay rates, and (iii) assumptions about the history of the sample.

Given this confirmation of the confounding factor, the line of observations may be extended until it intersects the curve consisting of the possible values without loss of lead. A variation of this method is also known as lead-lead dating.