Sentence examples for difficulty is estimated from inspiring English sources

It is important to note that Rasch analysis does not require a 'representative' sample as item difficulty is estimated independently from the ability of persons taking the test.

There is much debate between using the single parameter Rasch model (where item difficulty is estimated and equal item discrimination is assumed) or a more general 2 parameter IRT model.

The main difficulty is estimating the parameters that are not directly observed.

Since CINS items (knowledge of evolution) are dichotomously scored, person ability and item difficulty were estimated with Rasch's simple logistic model.

In Rasch measurement, individuals' ability and items' difficulty are estimated simultaneously and can be compared on a common scale, called a logit scale, based on the chance that each individual would answer each item correctly.

Finally, item parameters (i.e., item difficulties) were estimated using the conditional maximum-likelihood method as implemented in the R package eRm (see Mair, Hatzinger, and Maier, 2013).

Attention difficulties were estimated by the question how often "do you have problems concentrating in class" with a distribution from one to four.

The adolescents were asked: "Do any of these situations happen to you at school, or have they happened before?" Attention difficulties were estimated by the question how often "do you have problems concentrating in class", conduct difficulties included how often the participants "quarrel with the teacher", "get into fights" and "get scolded by the teacher".

With this sample, item difficulties were estimated very accurately.

Rasch analysis is particularly powerful in that both person and item parameters are estimated independently and thus, for example, item difficulties are estimated independently from the distribution of persons [ 8].

The young people highlighted that children who have been affected by war need extra support and attention in order to overcome their difficulties   Globally, it is estimated that around 250,000 children are currently exploited by armed groups and forces as soldiers.