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We define item context as the surface features used to frame a question and response choices.
The server has been not modified index and data item context for broadcast cycle.
We calculated Cohen's d to calculate an effect size of item context on students' scores.
Nehm and Ha ([2011]) subsequently investigated item feature effects and discussed the influence of the item context.
While these studies have identified differences in student response patterns with open-ended items, we do not yet know how item context might influence student responses to ordered multiple-choice items.
In this paper, we explore high school students' response patterns to matched pairs of multiple-choice items about natural selection, varying item context through the use of plants or animals in the item stems.
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Furthermore, item contexts were written to represent practical situations in classroom teaching of business and economics.
The experts were asked to estimate the extent to which the situational item contexts were representative of the prospective professional life of university graduates.
These descriptions were used to develop situation-based item contexts referring to business and economics teaching with a strong orientation towards practical requirements (Carlson 1990).
Items 2A and 2B (Table 3) explored students' understanding of the origin of traits as a result of random genetic processes, and used item contexts of a blue jay and prickly pear cactus.
Items 3A and 3B (Table 3) explored students' understanding of the origin of traits as a result of random genetic processes with distractors tied to transformationist ideas, and used item contexts of a skunk and chili pepper plant.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com