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Family study: the level of measuring personality and the familial aggregation estimates


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Vukasović, Tena. (2008). Family study: the level of measuring personality and the familial aggregation estimates. Diploma Thesis. Filozofski fakultet u Zagrebu, Department of Psychology. [mentor Bratko, Denis].

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In the present study, we investigated whether there is an effect of measuring personality at different levels on parent-offspring correlations and subsequently on familial aggregation estimates. Personality was conceptualized at three levels: specific reactions level, domain level and higher-order factor level. FFPI (Hendriks et al., 1999) was administered to a sample of 115 adolescents and their parents. Father-offspring correlations, mother-offspring correlations and regression of offspring on midparent score were computed for 100 specific reactions, 5 domains (Extraversion, Agreeableness, Conscientiousness, Emotional stability and Autonomy) and for 2 higher-order factors (Ã�ŽÃ�± and Ã�Ž"). At the specific reactions level, we can only say that there is a trend indicating a moderate heritability (Mdn= .133). That trend can also be seen at the next higher level - the domain level. At the domain level, genetic effects accounted for 26 to 34% of the phenotype variance. At the higher-order factor level, the same proportion of genetic effect on phenotype was found (28 to 35%). To summarize, personality is moderately (26-35%) and about equally heritable at all three levels of personality measured in the present study.

Item Type: Diploma Thesis
Uncontrolled Keywords: FFPI, family study, personality, higher-order factors, heritability
Subjects: Psychology > Psihologija ličnosti
Departments: Department of Psychology
Supervisor: Bratko, Denis
Date Deposited: 12 Sep 2008
Last Modified: 09 Jul 2014 23:20

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