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Identifier uch.med.phd//2001sarafidou
Title Τυπολογία της κοινωνικής συμπεριφοράς παιδιών που ζούν σε ιδρύματα: Ανάλυση Αντιστοιχιών σε δεδομένα παρατήρησης χρονικής δειγματοληψίας
Creator Sarafidou, Giasemi-Olga
Abstract Improvements in the quality of institutional care has led to a marked reduction or even elimination of cognitive deficits found in children of the early studies. Nevertheless, it does not seem that the same benefits have applied to their social relationships. These children are likely to have been exposed to a number of stressors. Adversities referring to pre-admission experiences like early separations, neglect and abuse, parental conflict and family breakdown may interfere with normal psycho-social development. Research has shown that children reared in residential institutions have increased levels of emotional and conduct disorders. All studies, however, have found great heterogeneity in institutional children's behaviour. This heterogeneity has been attributed to individual differences regarding resilience, i.e. the ability of some children to cope with problems and also regulate emotional distress. Research regarding this wide variation in behaviour and the factors associated with it, is essential both for prevention and for tracing the possible mediating mechanisms for the adverse psychological outcomes of institutional care. Findings of all relevant publications are based on univariate comparisons of institutional children's social behaviour with controls, employing measures from questionnaires and interviews with adults and rarely involving naturalistic observations. Time sampling naturalistic observations provide information concerning the individual's profile of behaviour and, therefore, allow for the study of the data structure if treated with an appropriate multivariate approach. The present thesis proposes a new strategy for the statistical analysis of time sampling naturalistic observations. This approach takes advantage of the multivariate nature of these data, thus providing for the typology of observed behaviour and also for the validity of observations with respect to data coming from other sources. This strategy was based on Correspondence Analysis of observational data and was applied on data from two different research projects (one with preschool children and one with school children). These projects concerned the social behaviour of children living in Greek institutions, compared to children from two-parent families, and had employed both time sampling observations as well as questionnaires and interviews with teachers, caregivers or parents. Correspondence Analysis yields the main dimensions of tha data matrix, based on an algorithm similar to that of Principal Components, but where distances between rows (children) and between columns (observed behavioural categories), are defined through the χ2-distance. Results indicated that the main dimension of observed behaviour refers to the child's involvement in class and provides an index of the level of adjustment. This dimension shows significant validity with measures of disturbance reported by adults. The first few dimensions allow for the simultaneous representation of both children and behavioural categories on the same graph and provide for the determination of the subgroup of "resilient" children as well as of subgroups with different types of disturbed behaviour. Results also indicated that children described as adjusted are adjusted both in the school environment and in the institution. Children with conduct disorders depicted them in both environments, but in a different way. Furthermore, the reason for admission into group-care as well as the age at admission are both associated with the child's resilience. Specifically, it was found that the age of 2-2,5 years is a critical age. Admission into care after that age and/or because of financial problems in the family are significant protective factors.
Issue date 2001-01-01
Date available 2001-02-07
Collection   School/Department--School of Medicine--Department of Medicine--Doctoral theses
  Type of Work--Doctoral theses
Permanent Link https://elocus.lib.uoc.gr//dlib/0/e/7/metadata-dlib-2001sarafidou.tkl Bookmark and Share
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