Many statistical procedures used in educational research are described as requiring that dependent variables follow a normal distribution, implying an interval scale of measurement. Despite the ...

This scale-invariant approach, applied to the case of three-category ordinal variables with identical median states, generates an unambiguous inequality and welfare ordering. This ranking is further ...

To compare the most commonly used equations to predict body fatness from skinfold thickness, in male and female adolescents, with dual-energy X-ray absorptiometry (DXA) as a reference method of ...