... identified where these clusters have differentiated into personality types. It is argued here that many of these authors’ conclusions are based on statistical artifacts and an unclear conception of the conditions of stability and predictability necessary for establishment of developmental types...

...L.A. Sroufe; Deborah Jacobvitz Could homotypic continuity be assumed, determining the degree of continuity in individual development over time would be straightforward. But simple stability is rarely obtained for several reasons, as will be illustrated by research examples. Data from an ongoing...

... Stability Abstract. Research issues in investigating continuity in child development are examined. Various concepts are discussed in relation to findings regarding continuity. The view is presented of behavior embedded in contexts. Contextual factors are discussed with respect to their relevance...

... refer to continuity in a construct and to stability in one’s relative placement on that construct, over time. Assessment of the real continuity in a construct must precede assessment of stability, and must be distinguished from pseudocontinuity, or the simultaneous presence of first-order continuity...

... the age of 12 months into the elementary school years and adolescence. As early as 12–24 months, some stability of both dimensions existed. Development of peer relations is anteceded and influenced by two accomplishments of mother-child relations – the capacity to use the mother as a secure base...

..., instructions or products referred to in the content or advertisements. Discontinuity Infant determinism Personality Structures Stability 5 11 1999 Commentary Human Development 1999;42:257 259 Two Forms of Discontinuity Jerome Kagan Harvard University, Cambridge, Mass., USA Key Words...