The most important test of invariance was the analysis of metric invariance, i. The development of the scale of protective factors: Resilience in a violent trauma sample. Hence, goodness of fit may be compared statistically by comparing whether the increase in chi-squares is significantly larger than the increase in degrees of freedom. The present study conducted in Belgium confirmed that the same six-factor model fitted the data best. Several studies have found the RSA to be both reliable and valid Friborg et al.
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