It is possible and desirable to construct caterpillar plots like Figure 1 for a teacher's average value added over two or more years. (carnegieknowledgenetwork.org)
[6], [7] Thus, a caterpillar plot like Figure 1, which displays results for a single year, must be regarded as reflecting our conclusions about value added for a given class in a given year and not stable differences between teachers. (carnegieknowledgenetwork.org)
As a married man, I despise plots like that and hurt a lot at the destruction of the family that is probaaaably gonna happen. (sbnation.com)