Table 1.

Descriptive data

	M	SD	Range
Time 1 variables
Child age in months (n = 100)	41.0	3.0	37.5–44.4
Child effortful control (n = 98)	0.00	0.70	−2.56–1.36
Child observed negativity (n = 98)	1.43	1.81	0–8
Maternal depressive symptoms (n = 100)	7.53	7.27	0–45
Dyadic flexibility in transitions per minute (n = 96)	1.97	1.48	0–7.40
Dyadic positive affect in seconds (n = 96)	18.06	29.36	0–181.87
Time 2 variables
Mother externalizing (n = 91)	7.91	7.34	0–31
Mother internalizing (n = 91)	5.07	4.21	0–20
Mother emotional negativity (n = 87)	25.21	4.92	15–38
Teacher externalizing (n = 67)	8.01	8.97	0–41
Teacher internalizing (n = 67)	6.70	6.98	0–30
Teacher emotional negativity (n = 67)	24.07	6.17	15–48

Note: Mother = mother ratings; Teacher = teacher ratings; SD = standard deviation.