Table 1 Assessment of child characteristics and development
Wave 1 | Wave 2 | Wave 3 | |
|---|---|---|---|
N | 3481 | 2849 | 2609 |
Age of child in months (CAPI) | M = 7.0, SD = 0.8 | M = 17.0, SD = 0.7 | M = 26.6, SD = 1.26 |
Direct measures | Developmental status indicated by a short sensorimotor scale adapted from the Bayley Scales | – | – |
Habituation–dishabituation paradigm (2 domain-general tasks) | Habituation–dishabituation paradigm (1 domain-general; 2 domain-specific tasks on early numeracy, early word learning) | – | |
Behavioral, socio-emotional, and more cognitive indicators observed during mother–child interaction | Behavioral, socio-emotional, and more cognitive indicators observed during mother–child interaction | Behavioral, socio-emotional, and more cognitive indicators observed during mother–child interaction | |
Indirect measures | Child temperament (orienting/regulatory capacity; negative affectivity) | Child temperament (negative affectivity) | Child temperament (negative affectivity) |
Health (e.g., general health status, weight, and size) | Health (e.g., general health status, weight, and size) | Health (e.g., general health status, weight, and size) | |
– | Child development/skills (e.g., cognition, communicative gesture, motor skills, and language) | Child development/skills (e.g., cognition, motor skills, and language) | |
– | – | Checklists of children’s language status (in German and Russian/Turkish L1) |