Assessing Uncertainties of Theoretical Atomic Transition Probabilities with Monte Carlo Random Trials

Suggested strategy for estimating uncertainties of theoretical calculations: 1) Investigate internal uncertainties of the model by varying its parameters and comparing results. 2) Investigate internal uncertainties of the method by extending the model and looking at convergence trends. 3) In some cases, a general estimate of internal uncertainties can be obtained by comparing results calculated in different gauges. 4) Investigate possible contributions of neglected effects. 5) Investigate external uncertainties of the method by comparing with results of other methods.