„Nutzen“ der Ausschlußwahrscheinlichkeit im Blutgruppengutachten?

There is no apparent advantage in using exclusion probability A (or W_A) in cases where parentage is disputed in either normal or special cases. Furthermore, W_A provides no more information than W_EM. However, the converse is true: W_A does not take the serotype of the putative father into account. Moreover, it is neither easier to understand nor easier to work with and, like W_EM, it also requires a prior probability. W_A is also not helpful in interpreting W_EM; for this, one has to use mean W_EM values for fathers and non-fathers. There is no reason to expect W_A and W_EM to converge at the upper end of the scale. W_A is unsuitable for establishing the borderline where decisions may no longer be valid, as the error quota in individual cases can be greater than that allowed within the limits. 100-W_EM % is the probability or error in categorical decisions in 100 cases with similar combinations. In contrast, 100-W_A % cannot provide a reliable probability of error in individual cases because W_A does not take full account of the phenotype of the putative father.