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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.
To increase difficulty of the search task, (1) we used large set sizes (50 or 80 items per trial), and (2) the intersection of the L distractors was offset by 2 pixels (search items were 20 × 20 pixels, 0.72-degree visual angle) to increase target-distractor similarity (see Fig. 1).
However Juba stated that the inability to move and shoot at the same time seemed "like a cheap and artificial way to increase difficulty than a technique to enhance tension".
New designs of injury prevention programmes may need to increase difficulty of progressions.
Larger-diameter catheters tended to increase difficulty in eating, although the difference between the groups was not statistically significant.
42 We extended the standard SPPB balance test with two additional levels to increase difficulty and to avoid possible ceiling effects.
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These factors, in turn, contribute to increasing difficulty meeting wildlife management objectives.
The four levels were conceptualized according to increasing difficulty in the financial decision-making process, based on the respective information that needed to be considered and the decision perspectives that needed to be weighed.
In the biomass combustion process, several variables are optimised in opposite directions (i.e., minimise the maximum temperature and maximise the ignition mass flux), which leads to increased difficulty in multi-objective processes.
Another recent study confirmed that the prevalence of psychiatric disorders among first-year students led to increased difficulty in adapting to university education.
This is an important gap in the research: there could be many factors which contribute to increased difficulty with real clinical decisions.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com