Table 2.
Measures and time points in TTC
| Method | Construct | Measures | Source | Wave (age of participants in years) |
||
|---|---|---|---|---|---|---|
| 1 (10 years) | 2 (12 yreas) | 3 (14 years) | ||||
| Self-report questionnaire | Mental health and behaviour problems | Self-organization | Interviewer | ✓ | ✓ | |
| SDQ, CBCL | Parent | ✓ | ✓ | ✓ | ||
| TIC | Parent | ✓ | ✓ | |||
| SMFQ, APSS | Child | ✓ | ✓ | ✓ | ||
| Psychological well-being | WHO-5 | Child | ✓ | ✓ | ✓ | |
| Psychological development, Character | CNSIE, MCQ, CPAQ, sensation-seeking | Child | ✓ | ✓ | ||
| Personalized values, aspirations | Parent/child | ✓ | ✓ | ✓ | ||
| Personal relationships | Bullying, help-seeking, romantic relationship, family relationship | Parent/child | ✓ | ✓ | ✓ | |
| Academic achievement | Performance in school | Parent | ✓ | ✓ | ✓ | |
| Physical health, nutrition and other problems | Special health care needs, medication, sleep habit | Parent | ✓ | ✓ | ✓ | |
| Extracurricular activity | Parent/child | ✓ | ✓ | ✓ | ||
| Internet addiction | Parent | ✓ | ✓ | ✓ | ||
| Cellphone use, TV viewing | Parent | ✓ | ✓ | |||
| Pubertal development | Tanner stage, physical change | Parent/child | ✓ | ✓ | ✓ | |
| Life event | Separation from parents, bereavement | Parent | ✓ | ✓ | ✓ | |
| Environment | School environment, private school use, neighbourhood | Parent/child | ✓ | ✓ | ✓ | |
| Parenting | Style of parenting | ✓ | ✓ | ✓ | ||
| Parent health | Medication, smoking, alcohol use | Parent | ✓ | ✓ | ✓ | |
| Parental mental health | K6, GHQ, purpose in life | Parent | ✓ | ✓ | ✓ | |
| Parental cognitive function | JART | Parent | ✓ | |||
| Social support for parent, demographics | SSQ, family composition, parental age, national origin, education, work, annual household income | Parent | ✓ | ✓ | ✓ | |
| Maternity record | Prenatal and postnatal factors | Gestational age, medical condition during pregnancy, smoking, alcohol use, mode of delivery, anthropometry at birth | Maternity record | ✓ | ||
| Breastfeeding | Maternity record | ✓ | ||||
| Anthropometry during infancy | Maternity record | ✓ | ||||
| Developmental milestones | Maternity record | ✓ | ||||
| Nursery use | Parent | ✓ | ||||
| Anthropometric measurement | Anthropometry | Height, weight, grip | Interviewer | ✓ | ✓ | ✓ |
| Length of finger | Interviewer | ✓ | ||||
| Interview | Cognitive function | WISC-III | Interviewer | ✓ | ✓ | |
| iPad | Inhibition, risk taking | Go No-go task, BART | iPad | ✓ | ||
| Saliva sampling | DNA, hormones etc. | DNA, hormone etc. | Child | ✓ | ||
| Urine sampling | Trace element etc. | Trace element etc. | Child | ✓ | ✓ | |