Table 1.
Characteristics of development and validation samples
| N development sample (%) | N validation sample (%) | ||
|---|---|---|---|
| Eligible (invited) | Children | 444 | 385 |
| Kindergartens | 9 | 6 | |
| Teachers | 60 | 75 | |
| Participating | Children with parental consent | 225 (51) | 209 (54) |
| Kindergartens | 9 (100) | 6 (100) | |
| Teachers | 60 (100) | 33(44) | |
| Cases excluded upon reasons | 34a (15) | 25b (12) | |
| Cases in dataset | 191 (43) | 184 (48) | |
| mean age (range; SD) | 4.27 (3 to 6; 1.05) | 4.25 (3 to 6; 0.94) | |
| n 3 years | 58 (30) | 46 (25) | |
| n 4 years | 60 (31) | 65 (35) | |
| n 5 years | 43 (23) | 55 (30) | |
| n 6 years | 30 (16) | 18 (10) | |
| Gender (female) | 49% | 51% | |
| German second language | 18% | 7% | |
| SES low/middle/high | 2,6/49,2/40,3% | - |
an = 5 with missing data or a “don’t know” response to the special needs assignation variable; n = 28 with special needs assignation, n = 1 under the age of three
bn = 22 due to an affirmative answer to the special needs question, n = 3 under the age of three
SES = socioeconomic status