The purpose of this study was to investigate the effect of relative age on selected biomotoric skills of children in puberty period. The sample of this research consisted of 30 male and 30 female students who have been studying at primary schools and on 9 age period. Identity info was grounded on determining chronologic ages of participants. In…

A total of 20 children with idiopathic precocious puberty; 27 adolescents with clinically delayed puberty; and an equivalent number of controls matched for sex, age, and IQ were given a battery of tests including measures of verbal and spatial abilities and a task using a dichotic listening procedure to assess hemispheric lateralization.…

Interviewed family members about family relationships and observed family members' interactions. Found that, compared to other girls, early maturing girls experienced higher levels of psychological distress; experienced greater psychological distress in grade 10 when they had a mixed-sex friendship network in grades 7 through 9; and were more…

In order to clarify the complicated relationship between the onset of puberty and the transition from elementary to junior high school, a controlled study was designed that compared the transition of grade 5 elementary school students to grade 6 in an elementary school with the transition of grade 6 elementary school students to grade 7 in a…