At the end of each performance report, QAPonline provides a statistical summary of the performance. This is in two parts.

1. QAPonline provides a X(2) Goodness of Fit Analysis. based upon the number of replies, QAPonline tests against what may be expected if the distribution of replies forms a normal distirbution. The example provided below describes a participant where all 9 replies ( represented as SD units from the group mean) lie below the group mean.

2. Estimate of bias. QAPonline provides an estimate of bias by a 2x2 chi square assesment of the number above and below the group means. In the example below all 9 are below the mean and the X(2) of 3.603 has a P value between 0.1 and 0.05.

Both estimates have little meaning until the end of the scheme.