Los puntos clave no están disponibles para este artículo en este momento.
Assumptions concerning the nature of constructs underlying developmental research are often only implicit, yet they guide data collection and inter-pretation of results. For example, a number of researchers have provided data concerning int-correlations among behaviors presumed to be in-dices of attachment (e.g., Coates, Anderson Hartup 1972; Maccoby Feldman 1972). Noting that such index behaviors do not intercorrelate highly, do not show temporal stability, and are strongly influenced by context, critics have on-cluded that the attachment construct itself is want-ing, that concepts such as attachment relationship and affective bond are superfluous, and that varying patterns of attachment behavior among infants are
Sroufe et al. (Thu,) studied this question.