“…They do not readily look at the same object or situation in different ways simultaneously. Sometimes young children process only one aspect of an event or situation (e.g., Piaget, 1941Piaget, /1965, sometimes they see only one aspect of an object (e.g., Elkind, 1978;Flavell, Flavell, Green, 1983;Flavell, Green, & Flavell, 1986;Inhelder & Piaget, 1964;Taylor & Hort, 1990;Winer, 1980;Zelazo & Frye, 1996), and sometimes they are predisposed to apply only one category label to an item (e.g., Liittschwager & Markman, 1994;Markman & Wachtel, 1988;Merriman & Bowman, 1989;). Children's performance in several paradigms (conservation, appearance reality, class inclusion, word learning, t Polynomy applies to count nouns as well as to other form classes (e.g., proper names, mass nouns, and noun phrases in general).…”