Mean Scale Score for CSTs. This is the arithmetic mean or average of the scale scores for all students who took each grade-and/or content-specific CST without modifications. The scale scores for each grade and subject area range between 150 (low) to 600 (high).
Causes of central precocious puberty can include: 1  damage to the inhibitory system of the brain (due to infection, trauma, or irradiation), 2  hypothalamic hamartoma produces pulsatile gonadotropin-releasing hormone (GnRH), 3  Langerhans cell histiocytosis, or.  McCuneâAlbright syndrome.
In central precocious puberty, the brain releases GnRH at a younger-than-normal age and starts the process. Most of the time, doctors can't pinpoint an exact cause for girls, but researchers have linked childhood obesity to early periods. Boys are more likely to have a specific trigger. Other causes include: A family history of CPP; A rare gene problem