Teachers all over the country are wondering what new tests for the common standards will look like when they make their debut in 2015. One of the two consortia working on those assessments has come ...
Purpose Large samples are generally considered necessary for Rasch model to obtain robust item parameter estimates. Recently, small sample Rasch analysis was suggested as preliminary assessment of ...
NOHARM is a program that performs factor analysis for dichotomous variables assuming that these arise from an underlying multinormal distribution. Parameter estimates are obtained by minimizing an ...
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