The object is a Mx3 matrix, one row per imputed data set and columns: estimate (the point estimates), var (their variances) and Z (the test statistic). M must be > 4
Note the Z should be ~ standard normal (so we do not use the chi_squared
test statistic see ScoreStat.object
for further details)
The summary.ScoreStatSet function will apply the MI averaging procedures and estimates of the test statistic and p-value
summary.ScoreStatSet