How do I set targets for grade K RCBM?

As the Kindergarten R-CBM probes are not designed for Benchmark testing, we do not have normative data for these probes.  The AIMSweb norms are based upon the Benchmark administrations of our probes, where all students with scores entered contribute to the norm tables.  A method to generate meaningful target scores for these measures is to administer these primer probes to 7-9 students from the general population at grade level, then use the median score from those assessments.  There also may be growth rates for primer probes via other publications which also may provide direction in this regard.