Generally the comparisons of concurrent validity, reliability, facility, discrimination ability and distractor performance produced only minor indications of differences in the performance of the multiple choice tests in the three different option number formats.
A comparison of scores, facility, discrimination, reliability and validity from 3-, 4- and 5-option versions of the multiple choice test found little variation in the performance of the three option formats although higher numbers of options tended to increase difficulty and to spread responses between the options.
Statistical tests were also conducted to analyse differences between a number of these indices including mean facility, discrimination and reliability across test forms.
Many barriers stand in the way of children's schooling, from unaffordable fees and lack of basic facilities, to discrimination and low quality education.
Next, a 10-item vocabulary gap fill subtest is subjected to a detailed analysis through the use of facility and discrimination indices.
After calibration by Rasch modeling (Rasch 1960) and other traditional item analysis methods (including goodness-of-fit, item facility, item discrimination, point-biserial correlations, item characteristic curves, and differential item functioning) several items were removed from the analysis due to exhibiting bias.
We conducted item analyses based on the Classical Test Theory (CTT) to look at the facility and discrimination of the scale (Kline 2005).
These tests included paired sample t-tests to evaluate facility and discrimination differences, and Feldt and Kim's [ 25] test for comparing reliability coefficients from different test forms.
This is an important point which suggests that test or aggregated statistics like mean facility or discrimination should not form the basis of item writing or test construction policies alone.
In 2030+, we would expect that addictions are treated in medical facilities with no discrimination.
