Attachment theory proposes that the sensitivity of a mother’s interactions with her child is the main developmental determinant of the quality of their attachment relationship (Ainsworth et al., 1978; De Wolff & van Ijzendoorn, 1997).

Empirical findings have generally supported this assertion; however, the strength of this association remains a matter of debate as the results of empirical findings have been highly variable (Atkinson et al., 2000; DeWolff & van IJzendoorn, 1997).

Several researchers have suggested that assessing maternal behaviour as a single global dimension may fail to capture important variation in the quality of interactions that influence the developing attachment relationship (van IJzendoorn, 1995; Pederson et al., 1998).

Consequently, assessing distinct aspects of maternal interactive behaviour may provide additional insight into the maternal contribution to the quality of the attachment relationship.