Sentence examples for estimating item from inspiring English sources
This involves fitting the GRM to the data, and to estimating item and latent trait parameters.
There are several ways of estimating item difficulty from the test taker's responses.
Two models were tested, one freely estimating item thresholds and class probabilities across students' gender (M1) and another freely estimating item thresholds across the groups, fixing class probabilities and classes across the groups (M2) to be invariant.
This linked design made it possible, when estimating item difficulties and student proficiencies, to apply standard measurement techniques to the resulting student response data (OECD, 2008).
E/CFA requires selection of so-called 'anchor items' for estimating item loadings on each subscale.
Differential item functioning (DIF) was investigated for gender, treatment aims (four categories: curative, remission, palliative and uncertain/missing) and age group (three categories based on tertiles: < = 51; > 51 & < = 63; and > 63 years of age) by estimating item locations for each subgroup and evaluating these using paired t-tests [ 34] (Linacre, 2008).
Next, this paper developed an ICT outsourcing security level quantification model by verifying the validity of the security inspection items deduced and by estimating item-specific weighted points.
We affirmed the score's unidimensionality by estimating item-to-rest correlations and evaluating the reliability of internal consistency with Cronbach's alpha.
The internal validity of the Swedish PPE-15 was evaluated with Cronbach´s alpha and by estimating item-to-scale correlations using Pearson product moment correlations, correcting for overlap.
Model data fit was assessed with the program Winsteps [ 35] which uses joint maximum likelihood estimation to estimate item and person parameters simultaneously.
We then assessed items by using classic test theory and IRT, used confirmatory factor analyses to estimate item parameters, and graded response modeling for parameter estimation.
