“…This insufficiency could be discerned both within one interaction partner (e.g., some children smiled and glanced at their parent at the start of reunion, while others did not react in any way, but both received the lowest score on the scale proximity-and contact-seeking behaviour), as well as between two interaction partners (e.g., although children were more actively smiling or vocalizing towards the parent, they received the same score towards the researcher due to a lack of more pronounced behaviour). Second, the highest scores of the SSIB often require (loco)motor behaviour (Tessier et al, 2002), which was not possible for a large group of physically impaired children. Third, the SSIB demands interpretation of the observer (e.g., "gives the impression of liking it"; Waters, 2002a,b;p.…”