20190926_040837159.pdf - scale 1 2 4 and 6-9 have both alpha coefficients above 0.70 and H-coefficients above 0.40 This indicates that the items within

20190926_040837159.pdf - scale 1 2 4 and 6-9 have both...

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scale 1, 2, 4 and 6-9 have both alpha coefficients above 0.70 and H-coefficients above 0.40. This indicates that the items within these scales have satisfactory homogeneity according to both methods. The alpha is however low on the sub- scale 3, 5 and 11, ranging from 0.62 to 0.64, whereas the H-coefficient indicated satisfactory homogeneity of these items. The difference between the alpha and H- coefficient may be due to the fact that these sub-scales consisted of merely 2 or 3 items each, which increases the difficulty of obtaining a satisfactory alpha. Due to the low number of items in sub-scale 3, 5 and 11, we judged the items to have 112 Paper I: Risk-taking attitudes satisfactory homogeneity. On the other hand, sub-scale 10, named “Fatalism”, demonstrated both a low alpha and a low H-coefficient, indicating weak scalability. This suggests that further work should be done in order to improve the reliability of the “Fatalism” sub-scale. Table 3 also describes the symmetry and shape, in terms of skewness and kurtosis, of the sub-scales’ distributions. Most of the sub-scales demonstrate a symmetrical distribution. However, sub-scale 3, 4 and 9 were relatively negatively skewed, indicating that the respondents in general had high scores on these scales, meaning they reported low preferences for risk-taking. Discriminant validity In an item-discriminant analysis, items are evaluated with respect to how well they represent a particular construct relative to other constructs. In order to obtain discriminant validity, an attitude item should show the strongest correlation with the scale it is hypothesised to represent compared to other scales. Satisfactory discriminant validity was obtained for all the 45 items. Another way of establishing item-discriminant validity is to examine substantial factor loadings of the items on the other sub-scales, meaning a “cross-loadings” above .50 to other factors identified in the exploratory factor analysis. No cross-loadings of this magnitude were found.
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