Los puntos clave no están disponibles para este artículo en este momento.
Boyd R. McCandless, Helen R. Marshall, A Picture Sociometric Technique for Preschool Children and Its Relation to Teacher Judgments of Friendship, Child Development, Vol. 28, No. 2 (Jun., 1957), pp. 139-147
McCandless et al. (Sat,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: