Administrative functions > Files created by Quantum > Weighting report file
 
Weighting report file
If your run contains weighting, the weighting program generates a report of the weights for each cell in each matrix. For example, if the weighting matrix is defined as:
wm1 age sex;target;100,125,175,75
...and there are 20 respondents in each cell, the weighting report is as follows:
             Summary of Weighting
               Matrix 1
1 Given       100.00    125.00
 Counts        20.0      20.0
 Weights       5.000     6.250

2 Given       175.00     75.00
 Counts        20.0      20.0
 Weights       8.250     3.750
For each weighting matrix Quantum also reports:
the lowest and highest weights calculated
the ratio of the highest weight to the lowest weight (highest/lowest)
the effective base. This is calculated as:
(sum of weights)2 / sum of squared weights
Quantum displays these statistics on the screen and prints them beneath the matrix in the weighting report file.
See
Rim weighting
See also
Files created by Quantum