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.
Puberty starts on average in girls between ages 8 and13 and in boys between ages 9 and 14. Doctors diagnose early puberty when this normal process starts early and continues to progress through growth spurts and bone maturation, usually for reasons we don't understand.bout 1 out of 5,000 children are affected. There are two types of precocious puberty, central and peripheral. 1  Central precocious puberty is the more common type. 2  The process is identical to normal puberty, but happens early. 3  The pituitary gland is prompted to produce hormones, called gonadotropins.