Pynciau a Argymhellir
- Attitudes
- Social conditions 4 canlyniadau
- Academic achievement 3 canlyniadau
- Education, Secondary 3 canlyniadau
- High school students 3 canlyniadau
- Social adjustment 3 canlyniadau
- Social skills 3 canlyniadau
- Youth 3 canlyniadau
- Care 1 canlyniadau
- Early childhood education 1 canlyniadau
- Educational surveys 1 canlyniadau
- Parents 1 canlyniadau
- Preschool children 1 canlyniadau
- Statistics 1 canlyniadau