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Guessing and item omission may be regarded as risk-taking or risk-avoidance strategies – sex specific adaptations to testing situations. In this article, these phenomena were analysed by (a) percentage of omissions by sex, (b) negative binomial regression to asses sex differences in the number of omissions, (c) c-DIF analysis using IRT-LR test and (d) linear regression using item attributes, to assess...
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