Rasch fit analysis has focused on tests of global fit and tests of the fit of individual parameter estimates. Critics have noted that slight, but pervasive, patterns of misfit to a Rasch model within the data may escape detection using these approaches. These patterns contradict the Rasch axiom of local independence, and so degrade measurement and may bias measures. Misfit to a Rasch model is c...

Growing up in Metro Detroit, surrounded by some of the best hockey and figure skating world, it was no surprise that Charlie took to ice at age 3. While excelling skatin...

Did your ballet teacher ever warn you that skating or weightlifting could ruin muscles? Cross-training is now recommended for dancer strength and versatility—but definitely need some guidance to get started.