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Most difficult items: The hardest thing you can move is the piano.
Results: The more difficult items of the FIM motor scale adequately discriminated among higher functioning patients.
This ten-item test is composed of very difficult items and very easy items, and item response theory (IRT) suggests that the omission of moderately difficult items is likely to have handicapped Wordsum's effectiveness.
If you can't, the system helps you to understand difficult items by providing "educational examples" or translations of individual words.
The easiest and the most difficult items were added because of the notable ceiling and floor effects.
The scores are derived by assigning different values to different items, with greater weight given to difficult items than easy ones.
The issue is critical to protecting the interests of the City of London and is probably among the most difficult items on Britain's renegotiation agenda.
Experimental results imply that non-native English speaking males and females employ different areas of the brain to comprehend the meaning of difficult items.
The examinees may answer the same percentage of questions correctly, but an examinee will gain a better score assuming they correctly answered more difficult items.
The SAT and ACT are designed to include easy items that most test-takers will answer correctly and difficult items that fewer can answer correctly.
Items near the top are more difficult items while those near the bottom are less difficult items.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com