Table 1.

CIB composites.

CIB composite	Infant age	Scales included in composite	Cronbach's α
Maternal sensitivity	4 and 13 m	Acknowledgement, Imitation (applies only to 4 m), Elaborating, Positive affect, Vocal appropriateness, Appropriate range of affect, Resourcefulness, Supportive presence	4 m = 0.86 13 m = 0.91
Maternal intrusiveness	4 and 13 m	Overriding	–
Maternal limit-setting	13 m	Consistency of style, On-task persistence, Appropriate structure	13 m = 0.89
Infant involvement	4 and 13 m	Gaze/Joint attention, Positive affect (only at 4 m), Alert, Vocalizations/Verbal output, Initiation, Fatigue (reversed) (only at 13 m), Competent use of environment (applies only to 13 m), Creative symbolic play (applies only to 13 m)	4 m = 0.84 13 m = 0.86
Infant negativity	4 and 13 m	Negative emotionality, Labile affect (applies only to 13 m)	4–13 m = 0.75
Infant compliance	13 m	Compliance to parent, On-task persistence	13 m = 0.79
Dyadic reciprocity	4 and 13 m	Dyadic reciprocity, Fluency, Adaptation-Regulation	4 m = 0.89 13 m = 0.94
Dyadic negative states	4 and 13 m	Constriction	–

Overview of the CIB composites displaying the ages for which the composites are present, the scales included in the composites, and the internal consistency measured as the Cronbach's α for each composite at each infant age.