introduction: the 2×2 model is the newest model of perfectionism that has been raised several hypotheses about the compatibility’s level of different types of perfectionism. the main aim of this study is to test these hypotheses. methods : a hundred and ninety eight ma students were selected through a cluster random sampling and were divided into four groups based on perfectionism’s types with ...

BACKGROUND Consumers of epidemiology may prefer to have one measure of risk arising from analysis of a 2-by-2 table. However, reporting a single measure of association, such as one odds ratio (OR) and 95% confidence interval, from a continuous exposure variable that was dichotomized withholds much potentially useful information. Results of this type of analysis are often reported for one such d...