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    A Twin Study of Computer Anxiety in Turkish Adolescents
    (MARY ANN LIEBERT, INC, 2012) Deryakulu, Deniz; Caliskan, Erkan
    The present study investigated computer anxiety within a sample of Turkish twins aged 10-18. A total of 185 twin-pairs participated in the study. Of the twins, 64 pairs (34.6 percent) were monozygotic (MZ) and 121 pairs (65.4 percent) were dizygotic (DZ). Of the 121 DZ twins, 54 pairs (44.63 percent) were same-sex twins and 67 pairs (55.37 percent) were opposite-sex twins. Computer anxiety was assessed using Computer Anxiety Rating Scale-Turkish Version (CARS-TV), one of the three main scales of "Measuring Technophobia Instruments" developed by Rosen and Weil. The results of paired t test comparisons showed no significant differences in MZ and same-sex DZ twin-pairs' levels of computer anxiety. On the other hand, a significant difference was found in opposite-sex DZ twin-pairs' level of computer anxiety. Interesting enough, males appeared to be more computer anxious than their female co-twins. In the present study, using Falconer's formula, heritability estimate for computer anxiety was derived from correlations based on MZ and DZ twins' mean scores on CARS-TV. The results showed that 57 percent of the variance in computer anxiety was from genetics and 41.5 percent was from nonshared environmental factors. Shared environmental influence, on the other hand, was very small and negligible. Interpretations of results and potential directions for future research are presented.
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    Intrapair Similarity of Computer Self-Efficacy in Turkish Adolescent Twins
    (SAGE PUBLICATIONS INC, 2016) Deryakulu, Deniz; Mcilroy, David; Ursavas, Omer Faruk; Caliskan, Erkan
    The purpose of this study is to investigate genetic and environmental influences on computer self-efficacy. A total of 165 Turkish twin-pairs participated in the study. Participants' mean age was 12.45 (SD=1.82). The results of paired t-test comparisons showed no significant differences in monozygotic, and both same-sex and opposite-sex dizygotic twin-pairs' levels of computer self-efficacy. Correlations were calculated to test intrapair similarity for computer self-efficacy. The monozygotic correlation for computer self-efficacy was .443 and the same-sex dizygotic correlation was .472, suggesting no genetic contribution to computer self-efficacy but providing support for environmental influences. Interpretations of results and potential directions for future research are presented.