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Table 1 Number of participating settings and families

From: Methodological challenges of evaluating the effects of an early language education programme in Germany

  Measurement points
1 2 3 4
Number of participating settings
 Consultation centres n = 76
(22.7%)
n = 75
(22.9%)
n = 74
(23.3%)
n = 72
(24.8%)
 Core daycare centres n = 100
(29.9%)
n = 96
(29.3%)
n = 93
(29.3%)
n = 85
(29.3%)
 Verbal*-daycare centres n = 82
(24.5%)
n = 82
(25.0%)
n = 79
(24.9%)
n = 76
(26.2%)
 Comparison group n = 77
(23.0%)
n = 75
(22.9%)
n = 71
(22.4%)
n = 57
(19.7%)
 Total sample 335 328 317 290
Dropout rate (%) 2.1 5.4 13.4
Number of participating families
 Consultation centres n = 325
(24.4%)
n = 275
(24.5%)
n = 224
(24.1%)
 Core daycare centres n = 413
(31.0%)
n = 358
(31.9%)
n = 288
(31.0%)
 Verbal*-daycare centres n = 309
(23.2%)
n = 251
(22.3%)
n = 210
(22.6%)
 Comparison group n = 284
(21.4%)
n = 239
(21.3%)
n = 206
(22.2%)
 Total sample 1331 1123 928
Dropout rate (%) 15.6 30.3