Gender differences in occurrence of behavioral and emotional problems at the lower grades of elementary school: Association with developmental and behavioral characteristics at 5 years

We examined whether developmental status and behavioral problems at age five were related to the occurrence of behavioral and emotional problems in the lower grades of elementary school among non-clinical children who did not receive specialized support for developmental problems in early childhood.The participants were 367 (non-clinical: 325) second- and third-grade elementary school children. The mean age at follow-up was 7.63 (SD = 0.62)....