Fixed Statistics

The fixed mean and/or fixed SD appear below the Summary Statistics. If fixed statistics are not specified, the evaluation mean and SD fields are blank. Click or the Information link to view the evaluation mean and SD after the specified number of points have been entered. Each level within a control material can have different combinations of fixed and floating statistics.

A fixed mean and fixed SD can be specified independently. There are four combinations as follows:

• Floating Mean/Floating SD
• Floating Mean/Fixed SD
• Fixed Mean/Fixed SD
• Fixed Mean/Floating SD