Your English writing platform
Discover LudwigSuggestions(5)
Exact(4)
as this item showed most variability.
Although this item showed a low difficulty index, those who selected the correct choices may have established a feedback mechanism with their RHUs.
Interestingly, this item showed by far the largest standard deviation (4.8; by contrast the mean SD of all other items was 1.7 and the highest SD when disregarding item 3 was item 10 with SD = 2.0).
Finally, although a substantial percentage of students (31.4%) continued to place the extinct common ancestor correctly at the base of the tree, students whose scores did change on this item showed a significant decrease in ability in the postconcept assessment.
Similar(56)
This item shows minor correlation with items a, b and c and Cronbachs Alpha for all four items is 0.78.
The floor effect of this item shows that the participants had quite stable medical and social status.
In this case, the item shown to children had an effect; a possible explanation for this difference is that children were very familiar with the use of scissors and as a result, many of them provided teleological explanations for it.
By contrast, in the un-exposed Control groups, only the participants explicitly asked to categorise the items showed this early visual differentiation of members and non-members – the un-exposed Control Recognition group did not.
No item showed notable DIF.
However, one item showed insufficient factor loadings.
No item showed an item total correlation of ritt < 0.20.
Write better and faster with AI suggestions while staying true to your unique style.
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