“…The lower the Euclidean distance between an entity and the child's real self, the greater the degree of identification with that entity and vice versa (Mackay, 1992). This and similar measures of identification (starting with Jones's study, 1961, on the Euclidean distance between elements) have been widely used (e.g., Adams-Webber, 1985b;Axford & Jerrom, 1986;Hewstone, Hooper, & Miller, 1981;Jones, 1961;Norris & Makhlouf-Norris, 1976;Sheenan, 1985;Slater, 1977) and are generally regarded as valid, stable, and reliable (Adams-Webber, 1979;Mackay, 1992;Sperlinger, 1976). Adams-Webber (1979) stated that the measure is "probably the most reliable of any structural index which can be derived from the repertory grids" (p. 40).…”